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NEET 2020
Exam
NEET
Year
2020
Subject
Physics
Chapter
Kinetic Theory of Gases

NEET 2020 · Physics · Kinetic Theory of Gases

The average thermal energy for a mono-atomic gas is : ( k _ B is...

The average thermal energy for a mono-atomic gas is : (kB{k}_{B} is Boltzmann constant and TT, absolute temperature)

Options

  1. A32kBT\dfrac{3}{2}{k}_{B}T
  2. B52kBT\dfrac{5}{2}{k}_{B}T
  3. C72kBT\dfrac{7}{2}{k}_{B}T
  4. D12kBT\dfrac{1}{2}{k}_{B}T

Correct answer

A. 32kBT\dfrac{3}{2}{k}_{B}T

Step-by-step solution

Average thermal energy =32kBT= \dfrac{3}{2}{k}_{B}T

where 33 is translational degree of freedom for monoatomic gas total degree of freedom
f=3f = 3 (translational degree of freedom)

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