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A Real (Non-Carnot)thermodynamic Engine,operating Between Thermal Energy Reservoirs at Temperatures

Question 52

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A real (non-Carnot)thermodynamic engine,operating between thermal energy reservoirs at temperatures of 450 K and 270 K,performs 3.3 kJ of net work,and rejects 8.2 kJ of energy in a single cycle.
(a)What is the thermal efficiency of this thermodynamic engine?
(b)What is the maximum efficiency it could possibly have?

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