If a system loses 250 kJ of heat at the same time that it is doing 500 kJ of wo

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 If a system loses 250 kJ of heat at the same time that it is doing 500 kJ of work, what is the change in the internal energy of the system?
(a)+250 kJ
(b)-250 kJ
(c)+750 kJ
(d)-750 kJ
Jan 10th, 2015

d

Jan 10th, 2015

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Jan 10th, 2015
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