⚛️ Physics · Kinetic Theory · NEET & JEE

For one mole of an ideal gas, Cp − Cv equals:

Answer: R.

A R
B 2R
C R/2
D zero

Correct answer: A. R

Explanation: Mayer’s relation gives Cp − Cv = R for one mole of an ideal gas.

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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For one mole of an ideal gas, Cp − Cv equals:

Concept context

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