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First Law of Thermodynamics: a System Has a Heat Source

Question 9

Multiple Choice

First law of thermodynamics: A system has a heat source supplying heat to an ideal gas at a rate of 187.0 W and the gas is doing work at a rate of 130.9 W. At what rate is the internal (thermal) energy of the gas changing?


A) 56.1 W
B) 318 W
C) -56.1 W
D) 187 W

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