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A piston cylinder assembly system undergoes a number of energy transfers to the gas inside resulting in an increase in internal energy of 2 5

A piston cylinder assembly system undergoes a number of energy transfers to the gas inside resulting in an increase in internal energy of 25 kJ. Find the heat transfer (in kJ) if there is boundary work of 10 kJ due to the piston rising, and combined electrical and mechanical work done on the system of 18 kJ.

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