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JEE Main 2021 (22 Jul, Shift 2) · Law of Equipartition of Energy

Law of Equipartition of Energy question from JEE Main 2021 (22 Jul, Shift 2)

Q2JEE Main 2021 · 22 JUL · SHIFT 2Easy

Law of Equipartition of Energy

What will be the average value of energy for a monoatomic gas in thermal equilibrium at temperature T?

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Answer: (a)

A monoatomic molecule has 3 translational degrees of freedom.
Each carries $\dfrac{1}{2}k_BT$ , so $E = 3 \times \dfrac{1}{2}k_BT$ .
So the answer is (a) $\dfrac{3}{2}k_BT$ .

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