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The average thermal energy for a mono-at...

The average thermal energy for a mono-atomic gas is: (`k_B` is Boltzmann constant and T, absolute temperature)

A

`1/2k_BT`

B

`3/2k_BT`

C

`5/2k_BT`

D

`7/2k_BT`

Text Solution

Verified by Experts

The correct Answer is:
B
For monoatomic gases, degree of freedom is 3. Hence average thermal energy per molecule is
`KE_(avg) = 3/2 k_BT`.
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