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27 February, 00:34

Three hundred joules of heat are added to a system. The system uses 140 joules to do work.

By how much did the internal energy of the system change?

a 140 J

b 160 J

c 240 J

d 440 J

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Answers (1)
  1. 27 February, 04:32
    0
    It would be B. 160 J
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