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Question: An engine absorbs 1.69 kJ from a hot reservoir at 277°C and expels 1.19 kJ to a cold reservoir at 27°C in each cycle.

(a) What is the engine's efficiency? %

(b) How much work is done by the engine in each cycle? J

(c) What is the power output of the engine if each cycle lasts 0.305 s? kW

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