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The mean square speed of the molecules o...

The mean square speed of the molecules of a fixed mass of a gas is `6.8 times 10^4 m^2.s^-2` calculate the mean square speed of the molecules when the gas has been compressed adiabatically to half of its original , volume The ratio of the specific heat capacity of the gas at constant pressure to that at constant volume is 1.30.

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The correct Answer is:
`8.4 times 10^4 m^2.s^-2`
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