⚛️ Physics · Kinetic Theory · NEET & JEE

The average translational kinetic energy per molecule of a gas is:

Answer: (3/2)kT.

A (3/2)kT
B simply kT
C (1/2)kT
D fully 3kT

Correct answer: A. (3/2)kT

Explanation: Average translational KE per molecule = (3/2)kT.

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 average translational kinetic energy per molecule of a gas is:

Concept context

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