Question: A cyclic machine ( closed system ) receives 3 0 0 kJ from a 9 0 0 K thermal reservoir. It rejects 1 8 0

A cyclic machine (closed system) receives 300 kJ from a 900 K thermal reservoir. It rejects 180 kJ to a 600 K reservoir, and the cycle produces 120 kJ of work as output.What is the Heat In, Qin, of this cyclic machine?

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