⚛️ Physics · Kinetic Theory · NEET & JEE

The law of equipartition of energy states that each degree of freedom contributes an average energy of:

Answer: (1/2)k_BT.

A k_BT
B (1/2)k_BT
C (3/2)k_BT
D 2k_BT

Correct answer: B. (1/2)k_BT

Explanation: According to the law of equipartition of energy, each quadratic degree of freedom contributes (1/2)k_BT of average energy per molecule.

Not all gas molecules move at the same speed - the Maxwell-Boltzmann distribution shows the spread, with the most probable speed v_p slightly less than the average v_avg, which is slightly less than the root-mean-square speed v_rms used in the pressure formula.

Concept context

Kinetic theory of gases connects molecular motion to pressure and temperature, explaining gas laws, specific heats, and molecular speeds.

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The law of equipartition of energy states that each degree of freedom contributes an average energy of:

Concept context

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