A real heat engine working between heat reservoirs at 987 k, Physics

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A real heat engine working between heat reservoirs at 987 k

A real heat engine working between heat reservoirs at 987 K and 659 K produces 540 J of work per cycle for a heat input of 2400 J. (a) Compare the efficiency of this real engine to that of an ideal (Carnot) engine. % of ideal (b) Calculate the total entropy change of the universe per cycle of the real engine. J/K (c) Calculate the total entropy change of the universe per cycle of a Carnot engine operating between the same two temperatures. J/K

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