The internal energy of a substance can be increased by
A)doing work on it.
B)letting it do work.
C)adding heat to it.
D)extracting heat from it.
E)none of the above.

Name: The internal energy of a substance can be increased by A)doing work on it. B)letting it do work. C)adding heat to it. D)extracting heat from it. E)none of the above.
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Question

Quizplus · Accepted Answer

The internal energy of a substance can be increased by doing work on it (A) or by adding heat to it (C), as both processes transfer energy to the substance.

The Internal Energy of a Substance Can Be Increased by