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Define root mean square speed (v(rms)). ...

Define root mean square speed `(v_(rms))`. Write down its equations.

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Root mean square speed is defined as the square root of the mean of the square of speeds of all molecules. It is denoted by `v_(rms)=sqrt(barv^(2))` .
Mean square speed `barv^(2)=(3kT)/(m)`
`v_(rms)=sqrt((3kT)/(m))=1.73 sqrt((kT)/(m))`
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