Partial Molar Properties And Their Application

Partial Molar Properties And Their Application Thermodynamics deals with energy changes and its relationship with work. It is based on three laws of thermodynamics which are used as axioms just as Newtons laws motion from the basis of classical mechanics. The first two laws are based on facts observed in every day life. The predictions based on these laws have been verified in most cases and so far no case has been reported where the laws break down. The laws can be stated in mathematical form. Hence, thermodynamics is an exact science. The thermodynamic theory can be developed without gaps in the argument using only moderate knowledge of mathematics. [B.]ABOUT PARTIAL MOLAR PROPERTY: Thermodynamic relations derived earlier are applicable to closed systems. In a system where not only the work and heat but also several kinds of matter are being exchanged, a multicomponent open system has to be considered. Here, the amounts of the various substances are treated as variables like any other thermodynamic variables. For example, the gibbs free energy of a system is a function not only of temperature and pressure , but also of the amount of each substance in the system,such that G=f(T,p,n1,n2à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.nk) Where n1,n2,à ¢Ã¢â€š ¬Ã‚ ¦.,nk represent the amounts of each of the K components in the system . for simplicity, let a system contain only two components. The total differential of G is dG=(?G/?T)P,n1,n2 dT+(?G/?p)T,n1,n2 dp+(?G/?n1)T,p,n2 dn+(?G/?n2)T,p,n1 dn2 In this eq., the partial derivatives (?G/?n1)T,P,n2 and (?G/?n2)T,P,n1 are known as partial molar free energies of components one and two , respectively. In genral, the partial derivative of a thermodynamic function Y with respect to the amount of component i of a mixture when T,p and amounts of other constituents are kept constant , is known as the partial molar property of the ith component and is represented as Yi,pm. Thus Yi,pm=(?Y/?ni)T,p,njs i=!j [C.]DEFINITION OF PARTIAL MOLAR PROPERTY: The partial molar property may be defined in either of the following two ways: 1. it is the change in Y when 1 mole of component i is added to a system which is so large that this addition has a negligible effect on the composition of the system. 2. Let dY be the change in value of Y when an infinitesimal amount dni of component i is added to a sysem of definite composition. By an infinitesimal amount dni we mean that its addition does not cause any appreciable change in the composition of the system. If we divide dY by dni , we get the partial molar property (?Y/?ni). thus, the partial molar property of the component i may be defined as the change in Y per mole of component i when an infinitesimal amount of this component is added to a system of definite composition. [D.]TYPES OF MOLAR PROPERTIES: (a.) Partial molar volume: The partial molar volume is broadly understood as the contribution that a component of a mixture makes to the overall volume of the solution. However, there is rather more to it than this: When one mole of water is added to a large volume of water at 25 °C, the volume increases by 18cm3. The molar volume of pure water would thus be reported as 18cm3 mol-1. However, addition of one mole of water to a large volume of pure ethanol results in an increase in volume of only 14cm3. The reason that the increase is different is that the volume occupied by a given number of water molecules depends upon the identity of the surrounding molecules. The value 14cm3 is said to be the partial molar volume of water in ethanol. In general, the partial molar volume of a substance X in a mixture is the change in volume per mole of X added to the mixture. The partial molar volumes of the components of a mixture vary with the composition of the mixture, because the environment of the molecules in the mixture changes with the composition. It is the changing molecular environment (and the consequent alteration of the interactions between molecules) that results in the thermodynamic properties of a mixture changing as its composition is altered. The partial molar volume, VJ, of any substance J at a general composition, is defined as: Fig: the partial molar volumes of water and ethanol at 25degree C where the subscript n indicates that the amount of all the other substances is held constant. The partial molar is the slope of the plot of the total volume as the amount of J is changed with all other variables held constant: Note that it is quite possible for the partial molar volume to be negative, as it would be at II in the above diagram. For example, the partial molar volume of magnesium sulphate in water is -1.4cm3 mol-1. i.e. addition of 1 mol MgSO4 to a large volume of water results in a decrease in volume of 1.4 cm3. (The contraction occurs because the salt breaks up the open structure of water as the ions become hydrated.) Once the partial molar volumes of the two components of a mixture at the composition and temperature of interest are known, the total volume of the mixture can be calculated from: The expression may be extended in an analogous fashion to mixtures with any number of components. The most common method of measuring partial molar volumes is to measure the dependence of the volume of a solution upon its composition. The observed volume can then be fitted to a function of the composition (usually using a computer), and the slope of this function can be determined at any composition of interest by differentiation. (b.) Partial molar gibbs energies: The concept of a partial molar quantity can be extended to any extensive state function. For a substance in a mixture, the chemical potential is a defined as the partial molar gibbs energy: i.e. the chemical potential is the slope of a plot of the Gibbs energy of the mixture against the amount of component J, with all other variables held constant: In the above plot, the partial molar Gibbs energy is greater at I than at II. The total Gibbs energy of a binary mixture is given by: The above expression may be generalised quite trivially to a mixture with an arbitrary number of components: where the sum is across all the different substances present in the mixture, and the chemical potentials are those at the composition of the mixture. This indicates that the chemical potential of a substance in a mixture is the contribution that substance makes to the total Gibbs energy of the mixture. In general, the Gibbs energy depends upon the composition, pressure and temperature. Thus G may change when any of these variables alter, so for a system that has components A, B, etc, it is possible to rewrite the equation dG = Vdp SdT (which is a general result that was derived here) as follows: which is called the fundamental equation of chemical thermodynamics. At constant temperature and pressure, the equation simplifies to: Under these conditions, dG = dwn,max (as was demonstrated here), where the n indicates that the work is non-expansion work. Therefore, at constant temperature and pressure: The idea that the changing composition of a system can do work should be familiar this is what happens in an electrochemical cell, where the two halves of the chemical reaction are separated in space (at the two electrodes) and the changing composition results in the motion of electrons through a circuit, which can be used to do electrical work. On a final note, it is possible to use the relationships between G and H, and G and U, to generate the following relations: Note particularly the conditions (the variables that must be held constant) under which each relation applies. Fig: the partial molar volumes of water and ethanol at 25degree C where the subscript n indicates that the amount of all the other substances is held constant. The partial molar is the slope of the plot of the total volume as the amount of J is changed with all other variables held constant: Note that it is quite possible for the partial molar volume to be negative, as it would be at II in the above diagram. For example, the partial molar volume of magnesium sulphate in water is -1.4cm3 mol-1. i.e. addition of 1 mol MgSO4 to a large volume of water results in a decrease in volume of 1.4 cm3. (The contraction occurs because the salt breaks up the open structure of water as the ions become hydrated.) Once the partial molar volumes of the two components of a mixture at the composition and temperature of interest are known, the total volume of the mixture can be calculated from: The expression may be extended in an analogous fashion to mixtures with any number of components. The most common method of measuring partial molar volumes is to measure the dependence of the volume of a solution upon its composition. The observed volume can then be fitted to a function of the composition (usually using a computer), and the slope of this function can be determined at any composition of interest by differentiation. (C.)PARTIAL MOLAR THERMAL PROPERTIES: 1. Partial molar heat capacities: the heat capacity at constant pressure Cp of a solution containing n1 moles of solvent and n2 moles of solute is given by Cp=(?H/?T)P,N à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦eq(1) The pressure and compostion being constant. Upon differentiation with respect to n1,maintaining n2 constant,it follows that CP1=(?CP/?n1)T,P,n2 =?H/?T?n1 .eq(2) Where Cp1 is the partial molar heat capacity,at constant pressure,of the constituent 1 of the given solution. The partial molar heat constant H1 of this constituent is defined by H1=(?H/?n1)T,P,n2 And hence differentiation with respect to temp. gives (?H1/?T)P,N=?H/?T?n1 =CP1 à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.eq(3) The result being identical with CP1 by eq.(3). The partial molar heat capacity of the solvent is any particular solution thus be defined by either eq(1) and eq(2). Similarly,i.e.,constituent 2, Cp2=(?CP/?n2)T,P,n1 =(?H2/?T)P,N à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..eq(4) We know, Li=H1-H10 Is differentiated with respect to temp.,at constant pressure and composition,it follows that (?L1/?T)P,N=(?H1/?T)P,N-(?H10/?T)P,N = Cp1-Cp10 à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦eq(5) Where Cp1,identical with Cp1 or Cp1o, is the molar heat capacity of the pure solvent or the partial molar heat capacity of the solvent in a solution at infinite dilution. Thus, Cp10 may be regarded as an experimental quantity, and if the variation of the relative partial molar heat content of the solvent with temperature,i.e. (?L1/?T)P,N, is known , it is possible to determine Cp1 at the corresponding composition of the solution. The necessary data are rarely available from direct thermal measurements of L1, such as thus described in 44f,at several temperatures, but the information can often be obtained, although not very accurately from E.M.F measurements. By differentiating the expression for the relative partial molar heat content of the solute it is found, in an exactly similar manner to that used above , that (?L2/?T)P,N=(?H2/?T)P,N-(?H02/?T)P,N =CP2-CP20 à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦eq(6) In this expression,Cp20 is the partial molar heat capacity of the solute in the infinitely dilute solution. Although the experimentel significance of the quantity is not immediately obvious.thus from a knowledge of the variation of L2, the partial molar heat content of the solute with temprature it should be possible to derive, with the aid of equation(6) , the partial molar heat capacity of the solute Cp2 at the given composition. [E.]Determination of partial molar properties: 1.Direct method: in view of the definition of the partial molar properties Gi as Gi=(?G/?ni)T,P,n1,à ¢Ã¢â€š ¬Ã‚ ¦.. à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.eq(1) An obvious method ffor its determination is to plot the value of the extensive properties G,at constant temperature and pressure, for various mixtures of the two components against the number of moles,e.g.,n2,of the one of them,the value of n1 being kept constant. The slope of the curve at any particular composition,which maybe determined by drawing a tengent to the curve, gives the value of G2 at that comoposition. Since the molality of a solution represents the number of moles of solute associated with a constant mass,and hence a constant number of moles,the plot of the property G against the molality can be used for the evaluation of the partial molar property of the solute. Once G2 at any composition has been determined, the corresponding value of G1 is readily derived by means of the relationship, G=n1G1+n2G2 In view of the difficulty of determining the exact slope of the curve at all points, it is preferable to use an analytical procedure instead of the graphical one just described. The property G is then expressed as a function of the number of moles of one component,e.g.,the molality, associated with a constant amount of the other component. Upon differentiation with respect to n,i.g.,the molality, an expression for the partial molar property is obtained. 2.from apparent molar properties: a method that is often more convenient and accuarate than that described above,makes use of the apparent molar property. We know G-n1G1=n2à ¶2 If n1 is maintained constant,so that n1G1 is constant, differentiation with respect to n2 , constant temp. and pressure being understood,gives G2 =(?G/?n2)n1 = (?à ¶G/?n2)n1 + à ¶G à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦eq(2) G2 = ((?à ¶G/? ln n2)n1+ à ¶G à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..eq(3) Since the molality m is equivalent to n2, with n1 constant, eq(2) and eq(3) may be written as G2= m (d à ¶G/dm)+ à ¶G à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦eq(4) G2=( d à ¶G/d ln m)+ à ¶G à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..eq(5) Respectively. If the apparent molar property à ¶G is determined for various values of n2 , with n1 constant , or at various molalities, the partial molar property G2 can be calculated from the slope, at any given composition, of the plot of à ¶G against n2 or against ln n2. The method based on the use of eqs(3)(5) is usally more accurate than that involving the logarithmic plot,since it does not give undue importance to result obtained in dilute solutions. An analytical method can, of course, be used in place of the graphical procedure if à ¶G can be expressed as a function of n2 or of the molality. For use in a later connection, an alternative form of eq(4) is required and it will be derived here. The right hand side of this equation is equivalent to d(m à ¶G)/dm, that is, m (d à ¶G/dm)= G2 and upon integration, m varying between the limits of zero and m, and mdà ¶G between zero and mà ¶G, it is found that mà ¶G=?0m G2 dm à ¶G=1/m?0m G2 dm for dilute solutions,the molality is proportional to the molar concentration c, and hence it is permissible to put this result in the form à ¶G=1/c?0m G2 dm [F.] APPLICATION OF PARTIAL MOLAR PROPERTIES: These properties are very useful since each and every reaction in chemistry occurs at a constant temperature and pressure and under these conditions we can determine these with the help of partial molar properties. They are highly useful when specific properties of pure substances and properties of mixing are considered. By definition, properties of mixing are related to those of the pure substance by: Here * denotes the pure substance M the mixing property z corresponds to the specific property From the definition of partial molar properties, substitution yields: Hence if we know the partial molar properties we can derive the properties of mixing.For the internal energy U, enthalpy H, Helmholtz free energy A, and Gibbs free energy G, the following hold: whereP is the pressure V is the volume T is temperature S is the entropy [G.] BIBLIOGRAPHY: 1. THERMODYNAMICS AND CHEMICAL EQUILIBRIUM AUTHOR: K L KAPOOR 2. THERMODYNAMICS FOR CHEMISTS AUTHOR: SAMUEL GLASSTONE 3. http://www.everyscience.com/Chemistry/Physical/Mixtures/a.1265.php 4. http://www.everyscience.com/Chemistry/Physical/Mixtures/b.1266.php 5. http://www.chem.ntnu.no/nonequilibrium-thermodynamics/pub/192-Inzoli-etal.pdf 6. http://physics.about.com/od/thermodynamics/p/thermodynamics.htm 7. http://www.chem.boun.edu.tr/webpages/courses/chem356/EXP5-Determination%20of%20Partial%20Molar%20Quantities.pdf

Health Care Reform Recommendations Essay

The topic of heath care reform is a highly debatable one. Many different organizations have diverse ideas on what is essential to ensure a successful healthcare system is developed in the United Sates. After reading recommendations to advance health care reform from the Mayo Clinic’s (2008), The Wall Street Journal’s Health Care CEO Council (2008), consisting of CEO’s from multiple different medical organizations, and America’s Health Insurance Plan (AHIP)(2007), the following is a list of three recommendations considered by all to be valid ideas for healthcare reform: 1. Access: Universal Health Insurance A. A comprehensive health care reform recommendation of providing universal access to affordable, guaranteed, quality insurance plans for those not covered by employer-based programs. This plan would require individuals to buy insurance, giving them choice, accessibility, control, and peace of mind. B. This reform would require adults to purchase private health insurance for themselves and their families. Employers could continue to participate by buying insurance for their employees or giving them stipends to purchase it. However, the individual would own the insurance. C. Appointing and independent agency to provide coordination, oversight and education for individuals choosing insurance options. 2. Quality: Reform the Payment System A. Change the reimbursement system to reward preventive care and evidence-based care, and extend government efforts to no longer reimburse inappropriate, unsafe or wasted care. Define and measure desirable outcomes for most common diseases. B. Payment to providers should be changed in order to improve health and minimize waste. Create payment systems that provide incentives for various providers to coordinate care, improve care, and support informed patient decision-making. Models of payment should be developed based on the success of chronic care coordination, care coordination teams, shared decision-making and episode-based payment. C. Change Medicare to a pay-for-value model. Redistribute Medicare payments to favor physicians who perform well, as opposed to the current system that rewards volume not value. Paying providers based on value can help produce desired results such as: great outcomes, safety, and service at an affordable cost over time. 3. Affordability: A. Poorly coordinated care also drives up costs when individuals seeing several health care practitioners receive the same diagnostic tests and procedures multiple times because one physician did not know that the other already had conducted them. Access to information that compares the effectiveness and cost of treatments: give providers, patients and purchasers access to a trusted source where they can find up-to-date and objective information on which health care services are most effective and provide the best value. B. Provide positive personal health habit incentives. Lifestyles characterized by smoking, poor diet, and lack of exercise leading to obesity are key contributors to high health care costs in the United States. Childhood obesity significantly increases the risk of cardiovascular disease in adulthood (CDC, 2006) and according to a study done by the Office of the US Surgeon General (2007), the complications from obesity: cardiovascular disease, diabetes and cancer are estimated to cost $92 billion (Finkelstein, 2003) in lost productivity per year whereas estimates suggest that the health consequences of smoking may lead to more than $75 billion per year in medical expenditures. C. Provide tax credits to individuals, families for the purchase of insurance, and to small business owners that provide medical coverage to employees. On January 24, 2007, while speaking about healthcare at Families USA, a healthcare advocacy group, then Senator Obama said â€Å" The time has come for universal health care in America [†¦ ] I am absolutely determined that by the end of the first term of the next president, we should have universal health care in this country. † (Wikipedia, n. d). Senator McCain however, proposed tax credits and open-market competition as opposed to government funding control (Wikipedia, n. d. ) In comparison, President Obama and Senator McCain, had similar plans in regards to cost and quality improvement. Both parties suggested the adoption of medical malpractice reforms, allowing drug re-importation, focusing on healthcare costs as a reflection of quality service, prevention and care of chronic conditions, and development/deployment of HIT. In addition to similarities in cost and quality improvement, both also believed that prevention is the key to creating a healthier population. Senator McCain focused more on individual responsibility in maintaining and healthy lifestyle whereas President Obama supported increased funding to community based preventive interventions. Overall, a comparison of both parties preliminarily health reform plans reflect multiple similarities in general ideas of needed reforms to the United Sate’s current healthcare system. Whether by adopting a universal healthcare system or implementing changes to the current system; extending coverage, lowering costs, and improving quality of care are all issues agreed upon by both parties as needing attention. References America’s Health Insurance Plans (AHIP)(2007). Guaranteeing Access to Coverage for all Americans. Retrieved 26 January 2009, from http://www. ahipbelieves. com/media/AHIP%20Guarantee%20Access%20Plan. pdf Centers for Disease Control and Prevention (2006). National Center for Health Statistics. Retrieved 26 January 2009, from http://www. cdc. gov/nchs/data/hesate/preliminarydesths05_tables. pdf. Finkelstein E. , et al. (2003). National medical spending attributable to obesity: How much and who’s paying? Health Affairs. W3: 219-226. The Mayo Clinic Health Policy Center (2008). Building Upon the Cornerstones: Recommendations, action steps and strategies to advance health care reform. Retrieved 26 January 2009, from http://www. mayoclinic. org/healthpolicycenter/recommendations. html The Wall Street Journal (2008) CEO Council: Shaping The New Agenda, Health Care. Retrieved 24 January 2009, from http://blogs. wsj. com/ceo-council/2008/11/23/health-care/ U. S. Surgeon General (2007). Overweight and Obesity: Health Consequences. Retrieved 26 January 2009, from http://www. surgeongeneral. gov/topics/obesity/calltoaction/fact_consequences. htm. Wikipedia (n. d. ). HealthCare Reform in the United States. Retrieved 26 January 2009, from http://en. wikipedia. org/wiki/Health_care_reform_in_the_United_States#cite_note-152

Symbolisms in Kate Chopin’s “The Storm”

Symbolisms in Kate Chopin's â€Å"The Storm† Kate Chopin's â€Å"The Storm† is a short story written in 1898 but was not published until 1969. The story explores an excess of turbulent emotions of the protagonists in the backdrop of unexpected storm. Chopin effectively confronts the brewing conflict of the story by her unflinching depiction of the story through symbolisms. The symbolisms most evident in â€Å"The Storm† includes: the storm itself, Assumption, a small town in which the protagonists first met and whiteness as mentioned many times in the story.Chopin opens the first part of the story by using the illustration of the threatening storm with Calixta's husband, Bobinot: â€Å"Bobinot, who was accustomed to converse on terms of perfect equality with his little son, called the child's attention to certain somber clouds that were rolling with sinister intention from the west, accompanied by a sullen, threatening roar† (123). The storm is one of the obvious themes of the story. It is involve in practically every element of the plot.The text above describes the impending change of weather that is about to come, foreshadowing the series of events that is about to unravel. Bobinot then, decides to wait at the general store with their son, Bibi until the storm evens out. This waiting out or avoidance from the storm suggests that he also avoids the storm of passion that his wife had expected of him. Bobinot's less passionate nature becomes more evident on how he is described later in the story: â€Å"Then he returned to his perch on the keg and sat stolidly holding the can of shirmps while the storm burst† (123).The text gives an insight on Bobinot's general behavior or nature as an individual describing him as stolid, meaning having or revealing little emotion or sensibility or it could also means not easily aroused or excited. After this, the readers are introduced to Calixta at their home who is at first â€Å"unaware of the storm coming† because she is occupied with sewing and doing other mundane chores (124). The story introduces the female protagonist as a dedicated homemaker sewing furiously and gathering her usband's Sunday clothes put out to dry before huge drops of rain wet them. This behavior potrayed by Calixta in beginning story implies that â€Å"her sexuality is repressed by the constraints of her marriage and society's view of women, represented in this passage by the housework† (121). Chopin efficiently compares the storm brewing in nature with the storm within Calixta as she encounters Alcee in her home alone: â€Å"As she stepped outside , Alcee Laballiere rode in at the gate.She had not seen him very often since her marriage, and never alone† (124). The text displays Calixta's surprise reaction upon seeing a past lover right through her door. Out of courtesy, she then let Alcee in her house more so, since the rain is starting to get stronger: â€Å"He expressed an intention to remain outside, but it was soon apparent that he might as well have been out in the open: the water beat in upon the boards in driving sheets, and he went inside, closing the door after him† (125).The text describes the growing intensity of the storm. It also foreshadows the growing storm of passion that is building up between Calixta and Alcee. Chopin's description of the intensity of the storm that is starting to build as the story progress is parallel to the tension raging between Calixta and Alcee: â€Å"The playing of the lightning was incessant. A bolt of lighning struck a tall chinaberry tree at the edge of the field† (124). The text describes the violent temperament of nature. This draws Calixta and Felix physically closer together.Calista, being scared of the raging storm is comforted by Alcee: â€Å"Alcee clasped her shoulders and looked into her face. The contact of her warm, palpitating body when he had unthinkingly drawn her into his arms, had aroused all the old-time infatuation and desire for her flesh† (125). The text explores the passion waging in Calixta's heart suffused with the raging of the storm outside. This also reminds her of the past flirtation they shared a couple of years ago in a place called Assumption. Storms as we know it is useful.Storms is also known for its destructive effects. And lastly storms usually occurs briefly. The storm of passion that takes over Calixta and Alcee is depicted in the story as something beautiful and significant: â€Å"When he touched her breasts they gave themselves up in quivering ecstacy, inviting his lips. Her mouth was a fountain of delight. And when he possessed her, they seemed to swoon together at the very botherland of life's mystery† (125). The text explores the beauty of abandon within the rage of their passion Calixta and Alcee discovered.The symbolism â€Å"The Storm† in the story is intended to reflect Calixta's sub-conscious sexual longin g as a result of her inadequate conjugal relationship with her husband. Just as the climatic storm takes in the characters in the story by surprise, the emotional storm of sexual fulfillment takes her by surprise. She realizes this arousal only after it passed and after the fact (121). Going back to the fact that they were both married to another people, the readers are prompted to question the morality aspects of what happened between Calixta and Alcee.However, such question is dismiss quickly by the story's plot. As quickly as the storm passes by the town where the characters are, so as passion that took over Calixta and Alcee: â€Å"The rain was over; and the sun was turning the glistening green world into a palace of gems. Calixta, on the gallery, watched Alcee ride away† (125). Although Calixta gives in to Alcee's advance, there is no suggestion by the author that the act was one of love making. The whole affair was not so much one of Calixta's love for Alcee, but one of her love for herself.Hence, from a technical point of view this is not a story of romance, but one of human nature. Though acclaimed now, this work was published after Chopin's death as she knew it was in direct oposition to societal norms of her times (433). After the spontaneous sexual encounter between Alcee and Calixta, the storm subsides. The sexual act was not to be forgotten and buried out of consciousness. Both of them have to put it in the context of their lives. While the reader would expect feelings of remorse and guilt from the two, they instead feel rejuvenated and relieved.Chopin captures the state of their minds using the following words: â€Å"So the storm passed and everyone was happy† (126). The tone of ending of the story suggests that everything works out for everyone's benefit. Calixta and Alcee's secret is officially safe, dissipating as the storm itself has. Another symbolism that is evident in the story is Assumption or the small town where Calixta an d Alcee met up and shared kisses five years ago: â€Å"Do you remember– in Assumption, Calixta?Oh, she remembered; for in Assumption he had kissed and kissed her; until his senses would well nigh fail, and to save her he would resort to a desperate flight† (124). The text describes the passion they once shared in Assumption although it does not lead to sex because Alcee would leave Calixta in heights of their passion so as to save her purity. The name Assumption has religious connotations that reminds us of virginity and chastity. In Christianity, it refers to a specific event: the Virgin Mary's ascent to heaven after she dies.Instead of having sex in a place associated with chastity, the place where Calixta and Alcee consumate their feelings for one another is Calixta's home. However, it is the memory of their time in Assumption: a place that reminds them of chastity, where they could not be together that sparks a more mature interlude between them. Another symbolism that Chopin examines in the story is the repeated mention of â€Å"whiteness†. While usually white symbolizes purity or chastity, the story twists it around to represent sexual desire and longing: † She was a revelation in that dim, mysterious chamber; as white as the couch she lay upon.Her firm elastic flesh that was knowing for the first time its birthright was like a creamy lily that the sun invites to contribute its breath and perfume to the undying life of teh world. The generous abandon of her passion, without guile or trickery, was like white flame which penetrated and found response in depths of his own sensuous nature that had never been reached† (124). While this whiteness in literature would traditionally refer to a body the male character could not access, this text transform the meaning of purity into desire and sexuality.The â€Å"flame† of Calixta's â€Å"passion† is â€Å"white†; her body in all its ecstasy is â€Å"like a cre amy lily. † In this story, the color white might almost be better understood as red-hot. It means giving in, not holding back. Works Cited Farca, Paula Anca. â€Å"Foucault Informs Kate Chopin's Short Fiction. † Academic Exchange Quarterly 11. 1 (2007): 120-24. Print. Manning, S. L. â€Å"Kate Chopin Reconsidered: Beyond the Bayou. † The Review of English Studies (1995): 433-442. Print. Kennedy, X. J. , and Dana Gioia. Literature: An Introduction to Fiction, Poetry, Drama, and Writing. New York: Pearson Longman, 2007. Print.

Essay on Consequences of Smoking - 908 Words

Smoking is harmful to your health in many different ways, but it is also bad for the people around you because it is more than just a bad habit, it is a terrible addiction. It is very difficult to stop after you have started, especially if it has been several years since the very first time you tried smoking. There is a numerous amount of reasons why smoking is terrible for you, your health, and others as well. You are slowly killing yourself by letting all different types of harmful chemicals into your system, but you are also harming others around you in the process. Stop smoking and save lives. To begin with, smoking is very hazardous to your health. Tobacco smoke contains many harmful chemicals in it. â€Å"Of the more than 7,000 chemicals†¦show more content†¦If you continue to smoke and do all of that harmful stuff to your body it can cause a premature death. You are killing yourself faster than your body is actually dying. 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