Question

The kinetic energy, due to translational motion, of most of the molecules of an ideal gas at absolute temperature T is

• A. kT
• B. k/T
• C. T/k
• D. 1/kT

Answer 1

Answer: (A)

kT

Answer 2

Most probable speed

$v_{mp} = \sqrt{\frac{2kT}{m}} \Rightarrow \frac{1}{2}mv_{mp}^{2} = kT$