Question

In thermal equilibrium, the average velocity of gas molecules is

• A. Proportional to $\sqrt{T}$
• B. Proportional to $T^{2}$
• C. Proportional to $T^{3}$
• D. Zero

Answer 1

Answer: (A)

Proportional to $\sqrt{T}$

Answer 2

$v_{average} = \sqrt{\frac{8RT}{\pi M}}$Ž $v_{av} \propto \sqrt{T}$