A fixed amount of an ideal monatomic gas is maintained at constant volume as it is cooled by 50 K. This feat is accomplished by removing 400 J of energy from the gas. How much work is done by
The gas during this process?
A) 400 J
B) 200 J
C) -400 J
D) -200 J
E) 0 J

Question

Quizplus · Accepted Answer

When a gas is maintained at constant volume and cooled, the work done by the gas is zero because work (W) is defined as W = PΔV, where P is pressure and ΔV is the change in volume. Since the volume does not change (ΔV = 0), no work is done.

A Fixed Amount of an Ideal Monatomic Gas Is Maintained