When heat is added to a closed system, it goes into
A) work only.
B) entropy only.
C) internal energy only.
D) either (A) or (C) or both.

Question

Quizplus · Accepted Answer

When heat is added to a closed system, it can be used to do work, increase the internal energy of the system, or both, according to the first law of thermodynamics. This law states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system on its surroundings.

When Heat Is Added to a Closed System, It Goes