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JEE Advanced 2019 Paper 1

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Question : 29

Total: 54

Which of the following statement(s) is(are) correct regarding the root mean square speed (Urms) of a molecule in a gas at equilibrium?

εav at a given temperature does not depend on its molecular mass
Urms is inversely proportional to the square root of its molecular mass
Urms is doubled when its temperature is increased four times
εav is doubled when its temperature is increased four times

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