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MHT CET · Physics · Kinetic Theory of Gases

If a gas is compressed isothermally then the r.m.s. velocity of its molecules

  1. A increases.
  2. B decreases.
  3. C remains the same.
  4. D first increases and then decreases.
Verified Solution

Answer & Solution

Correct Answer

(C) remains the same.

Step-by-step Solution

Detailed explanation

The r.m.s. velocity of gas molecules is given by \(v_{rms} = \sqrt{\frac{3RT}{M}}\). For an isothermal process, the temperature (T) remains constant.