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Calculate the kinetic energy per molecul...

Calculate the kinetic energy per molecule and also rms velocity of a gas at `127^@C` .
Given `k_B = 1.38 xx10^(-23) J "molecule"^(-1) K^(-1) ` and mass per molecule of the gas `=6.4xx10^(-27)` kg .

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We have `pV=NkappaT`
Or, `N=(pV)/(kappaT)`
`=((1.0xx10^(5)Nm^(-2))(1 m^3))/((1.38xx10^(-23)JK^(-1))(300K))
~~ 2.4xx10^(25).`
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