quiz2 - Exam Name_ MULTIPLE CHOICE. Choose the one...

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Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) If a diatomic gas is heated to a very high temperature, how many degrees of freedom are active ? A) 3 B) 5 C) 7 D) 9 E) arbitrarily many 1) 2) A system has a heat source supplying heat at a rate of 184 W and is doing work at a rate of 128.8 W. At what rate is the internal energy of the system changing? A) 55.2 W B) 184 W C) 312.8 W D) -55.2 W 2) 3) An ideal gas in a balloon is kept in thermal equilibrium with its constant-temperature surroundings. How much work is done by the gas if the pressure is slowly reduced and the balloon expands to 6.0 times its original size? The balloon initially has a pressure of 840 Pa and has a volume of 0.30 m 3 . A) 1500 J B) 500 J C) 7.3 J D) 450 J 3) 4) A gas has 6 degrees of freedom. Find the adiabatic exponent, g . A) 3
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This test prep was uploaded on 04/20/2008 for the course PHYS 2c taught by Professor Wurthmeir during the Fall '05 term at UCSD.

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quiz2 - Exam Name_ MULTIPLE CHOICE. Choose the one...

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