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An engine absorbs 1.74 kJ from a hot reservoir at 277°C and expels1.19 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?(c) What is the power output of the engine if each cycle lasts0.301 s?
in one cycle, an engine burning a mixture of air and methanol (methyl alcohol) absorbs 538 J and expels 338 J. What is the engine's efficiency?