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MHT CET202311 May 2023Morning ShiftPhysicsKinetic Theory of GasesActual

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

Options

  1. Adecreases.
  2. Bincreases.
  3. Cremains the same.
  4. Dfirst decreases and then increases.

Correct answer

C. remains the same.

Step-by-step solution

The root-mean-square (rms) velocity of gas molecules is, v _ r . m . s = 3 kT m v _ rms T for a given gas. As the temperature is constant in isothermal process, the r.m.s velocity remains the same.

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