A certain amount of ideal monatomic gas is maintained at constant volume as it is cooled from 455K to 405 K.This feat is accomplished by removing 400 J of heat from the gas.How much work is done by the gas during this process? The ideal gas constant is R = 8.314 J/mol • K.
A) 0.00 J
B) 200 J
C) 400 J
D) -400 J
E) -200 J

Question

Quizplus · Accepted Answer

Since the volume of the gas is kept constant during the cooling process, no work is done by the gas. Work done by a gas is given by the formula W = PΔV, where P is the pressure and ΔV is the change in volume. If the volume does not change (ΔV = 0), then the work done (W) is also zero.

A Certain Amount of Ideal Monatomic Gas Is Maintained at Constant