Question: an engine operates in a carnot cycle between two reservoirs of temperature 3 0 5 K and 7 9 9 K ( a ) hoe

an engine operates in a carnot cycle between two reservoirs of temperature 305K and 799K (a) hoe much work does the engine do in one cycle if it also absorbs 2400J from the high temperature reservoir? (b) what is the efficiency of this engine

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