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EXAMCRACKERS 1001questions help gen chem

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can someone explain this question from EK 1001 gen chem (331)

a heat engine is designed using an ideal gas as a working fluid. at the completion of each cycle, the engine returns to its original state. if the net flow of heat into the engine is 60,000 kj/cycle, what can be said about the work done by each cycle?


A-less than 60,000 KJ
B-equal to 60,000 kj
C-greater than 60,000 kj
D-begins as 60,000 kh and decreases each subsequent cycle

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