Kinetic Theory · JEE Preparation Physics
The root mean square speed of gas molecules is v at pressure P and temperature T. If the pressure is doubled keeping the temperature constant, the ne…
Practice question from Kinetic Theory (JEE Preparation Physics), with the correct answer and a step-by-step solution.
easy · MCQ · Q-3A0430
The root mean square speed of gas molecules is at pressure and temperature . If the pressure is doubled keeping the temperature constant, the new root mean square speed will be:
- A.Correct answer
- B.
- C.
- D.
Solution
The root mean square speed of an ideal gas depends only on its temperature, given by . Since the temperature remains constant, the rms speed does not change, even if the pressure is doubled (the density doubles accordingly, keeping constant).
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