Quiz4 C - Exam Phys 2Ca, Quiz 4 Name_ MULTIPLE CHOICE....

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Exam Phys 2Ca, Quiz 4 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is a WRONG statement? A) A gas of very complicated molecules, each with many activated degrees of freedom, would have the ratio of specific heats, C p /C v , very close to 1. B) A refrigerator left in a kitchen with an open door would not cool the air in the kitchen in the long run. C) Efficinecy of a power plant can be increased if colder water is supplied to the cooling system of the plant. D) If electricity is supplied to a heat pump from a power plant, the heat output of the pump cannot be greater than the heat extracted from the power plant's fuel. 2) Which of the following is a WRONG statement? A) Quality of energy provided by sunlight is about the same as quality of energy supplied by a heat reservoir with the temperature of the outer shell of the Sun. B) A heat pump uses work W (usually supplied to it as electricity) and delivers heat Q into a house, where W is always less than Q. C) For a Carnot refrigerator, the amount of heat extracted from cold reservoir is always greater than work,
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Quiz4 C - Exam Phys 2Ca, Quiz 4 Name_ MULTIPLE CHOICE....

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