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PracticeFinalPart1

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Please reread section 5.2 if you have problems with the equilibria problems. I will add a few more questions in a part two of the practice Final. I will be available during office hours and by appointment on non-furlough days prior to the final. To schedule an appointment email me at . You will be allowed 1 page (8.5”x11” front and back) of handwritten notes for the test. The final exam will be taken almost entirely from practice problems and homework problems. If you master this material you will do exceptionally well on the test. Answers to the homework and Practice tests will be posted by December 9 th . 1. Consider equilibrium between the liquid-gas (l-g), liquid-solid (l-s), and solid-gas (s- g) phases of a substance. a. For each phase (solid, liquid, gas) does the free energy per mole decrease or increase when the temperature is raised? b. When the temperature is raised what happens to the relative stability between the two phases (which phase becomes more favorable)? c. Explain in words your answer to a and b and justify it with any appropriate equations d. For each phase, does the free energy per mole decrease or increase when the pressure is raised e. When the pressure is raised which phase is stabilized more? f. Justify your answers to d and e using any appropirate equations. 2. Consider the equilibrium between the liquid and gas phases of a substance A(l) bB A(g) a.) How would you expect the equilibrium to change if the pressure is raised?

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