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A Carnot engine works between two heat reservoirs at temperatures Th = 305 K and Tc = 60 K.
(a) What is its efficiency?
%
(b) If it absorbs 85 J from the hot reservoir during each cycle, how much work does it do?
J
(c) How much heat does it give off in each cycle?
(d) What is the coefficient of performance of this engine when it works as a refrigerator between these two reservoirs?
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