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A gas is compressed isothermally . The r...

A gas is compressed isothermally . The rms velocity of its molecules

A

increases

B

decreases

C

first increases and then decreases

D

remains the same

Text Solution

Verified by Experts

The correct Answer is:
D
The root mean square velocity of a gas molecule is given by , `C"rms"=sqrt((3RT)/(M))`
Gas is compressed isothermally , so T remains constant and hence, root mean square velocity will bremain same.
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