5. A Carnot engine works between two heat reservoirs at temperatures Thot= 301.0 K and Tcold= 220.0 K. a. What is its efficiency? 0.27 % b. If it absorbs 200.0 J from the hot reservoir during each cycle, how much work does it do per cycle? 54 J c. How much heat does it reject during each cycle? 146 J d. What is the coefficient of performace, COP, of this engine when it works as a refrigerator between the same two reservoirs?

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