hw5_F - CH353M Homework assignment 5(due Friday Nov 11 1(8...

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CH353M Homework assignment 5 ( due Friday Nov. 11 ) 1(8) . n 1 moles of compound 1 form an ideal mixture with n 2 moles of compound 2. The process is performed at constant P and T . Let 0 1 V and 0 2 V be the molar volumes of the pure compounds. (a) What is the total volume of the mixture? Is it larger, smaller, or the same as the total volume of the pure compounds? (b) What is the change of the Gibbs free energy, G , upon mixing? (c) What is A ? (d) What is U ? 2. For the purposes of this problem, a soda drink in a can consists of water with CO 2 dissolved in it. The drink is in equilibrium with pure gaseous CO 2 . As we know from our experience, the overall pressure P inside the can is higher than the atmospheric pressure. Assume that CO 2 and water form an ideal solution [FYI: This assumption is actually incorrect; The correct treatment of the problem would lead to qualitatively the same answer]. A (3). Soda cans made by different manufactures generally have different pressures inside. Consider two cans of soda; The pressure inside can 1 is P 1 = 1.5 atm and the pressure inside can 2 is P 2 = 2 atm. The mole fraction of CO 2 in the drink in the first can
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hw5_F - CH353M Homework assignment 5(due Friday Nov 11 1(8...

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