A confined gas has an average energy/molecule of 60. meV. If the pressure is tripled and the volume is reduced by a factor of 3, what now is the average energy?
A) 0.18 eV
B) 0.10 eV
C) 0.03 eV
D) 0.06 eV
E) 0.02 eV

Question

Quizplus · Accepted Answer

The average energy per molecule in a confined gas is directly proportional to the temperature. Since both pressure and volume changes result in the system undergoing an isothermal process (temperature remains constant assuming ideal gas behavior), the average energy per molecule remains unchanged at 60 meV or 0.06 eV.

A Confined Gas Has an Average Energy/molecule of 60