A 4-mol ideal gas system undergoes an adiabatic process where it expands and does 28 J of work on its environment.What is its change in internal energy?
A) 28 J
B) −28 J
C) zero
D) −7 J

Question

Quizplus · Accepted Answer

In an adiabatic process, the change in internal energy is equal to the work done on or by the system. Since the gas does 28 J of work on the environment, the internal energy decreases by 28 J.

A 4-Mol Ideal Gas System Undergoes an Adiabatic Process Where