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MHT CET20244 May 2024Evening ShiftPhysicsKinetic Theory of GasesActual

A perfect gas of volume 5 litre is compressed isothermally to volume of 1 litre. The r.m.s. speed of the molecules will

Options

  1. Aincrease by 10 times
  2. Bdecrease by 10 times
  3. Cincrease by 5 times
  4. Dremain unchanged

Correct answer

D. remain unchanged

Step-by-step solution

As the gas is compressed isothermally, the temperature remains constant. The rms speed is given by, v _ rms = 3 RT M The rms speed remains unchanged.

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