55. IE A Carnot engine operating between reservoirs at 27 C and 227 C does 1500...

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55. IE •• A Carnot engine operating between reservoirs at 27 °C and 227 °C does 1500 J of work in each cycle.

(a) The change in entropy for the engine for each cycle is (1) negative, (2) zero, (3) positive. Why?

(b) What is the heat input of the engine?

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