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Work Done in Reversible Adiabatic Process

A gas is allo...

Question

A gas is allowed to expand isothermally. The root mean square velocity of the molecules

A

Will increase

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B

Will decrease

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C

Will remain unchanged

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D

Depends on the other factors

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Solution

The correct option is C
Will remain unchanged

$v = \sqrt{\frac{3 R T}{M}}$ . In Isothermal expansion, the temperature remains constant.

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