[CHM113] 113TApe4sp08

[CHM113] 113TApe4sp08 - Practice Exam 4 For CHM 113...

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Practice Exam 4 For CHM 113 Professor: Dr. Briggs Prepared by Heide McILwraith
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1. Which of the following is true for a sample of gas? a) Increase in the pressure on the sample, results in an increase in volume of gas (T, n, constant) b) Increase in temperature, results in an decrease in volume of gas (P, n constant) c) Increase in the temperature of a gas sample, results in an increase in the pressure exerted by the gas on the walls of the container (V, n, constant) d) Increase in the volume occupied by the gas, results in an increase in the pressure exerted by the gas on the walls of the container (T, n constant) 2. Which of the intermolecular forces best explains the trends in the graph below? a) Dipole-Dipole interaction b) London Dispersion Forces c) Hydrogen Bonding d) The graph is actually from a chapter we haven’t studied. 3. Which of the following substances is likely to be most soluble in hexane C 6 H 14 ? a) CCl 4 b) CH 3 COOH c) H 2 SO 4 d) CaCl 2
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Use the following graph to answer questions 4-6. 4. When the pressure in the above water phase diagram is increased to 200 atmospheres, what is the approximate temperature at which the water boils? a) 50° C b) 100° C c) 200° C d) 350° C 5. What phase(s) is/are present at both points B and C in the graph? a) Solid only b) Liquid only c) Gas only d) All phases are present at these points 6. The backward slope in the phase diagram for water indicates what? a)
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[CHM113] 113TApe4sp08 - Practice Exam 4 For CHM 113...

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