The absolute temperature of an ideal gas is directly proportional to which of the following quantities?
A) the average kinetic energy of its molecules
B) the average momentum of its molecules
C) the average speed of its molecules
D) the mass of its molecules
E) It is proportional to all of the above quantities.

Question

Quizplus · Accepted Answer

The absolute temperature of an ideal gas is directly proportional to the average kinetic energy of its molecules, according to the kinetic theory of gases. This relationship is described by the equation $KE = \frac{3}{2}kT$, where $KE$ is the average kinetic energy of the molecules, $k$ is the Boltzmann constant, and $T$ is the temperature in Kelvin. The other options do not have a direct proportional relationship with the absolute temperature.

The Absolute Temperature of an Ideal Gas Is Directly Proportional