A closed system passes from state 1 to state 2 while (200 mathrm{~kJ}) of heat is added
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A closed system passes from state 1 to state 2 while \(200 \mathrm{~kJ}\) of heat is added and \(280 \mathrm{~kJ}\) of work is done. As the system is returned to state \(1,160 \mathrm{~kJ}\) of work is done on it. Calculate the heat transfer during process 2 to 1 .
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