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23 June, 23:24

What is the change in internal energy if 60 j of heat are added to a system and the system does 40 j of work on its surroundings? use u = q - w.

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  1. 23 June, 23:52
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    U = q - w

    u = 60J - 40J = 20J

    Change in internal energy = 20 J.
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