CH145exam2_practice

CH145exam2_practice - CH145 Fall 2009 Exam 2 PRACTICE SHOW...

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CH145 – Fall 2009 Exam 2 – PRACTICE SHOW ALL WORK!! 1. What properties of a gas are responsible for its deviation from ideality? (8 pts) 2. Which of the following statements about an ideal gas at constant temperature is true ? (6 pts) (a) the kinetic energy of gas particles is a function of intermolecular forces (b) all gas particles are all moving at the same speed (c) the root-mean-squared velocity of the gas particles is independent of temperature (d) the total kinetic energy in the system is equal to that of a heavier ideal gas at the same temperature, volume, and number of particles (e) ideal gas particles collide only with the walls of the container, not with each other 3. What about the hydrogen atom (bound to an oxygen, nitrogen, or fluorine) makes it uniquely capable of forming an exceptionally strong dipole–dipole interaction with an oxygen, nitrogen, or fluorine atom on another molecule? (8 pts) 4. For a given substance, which tends to be the larger thermodynamic value:
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CH145exam2_practice - CH145 Fall 2009 Exam 2 PRACTICE SHOW...

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