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Define RMS speed....

Define RMS speed.

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RMS speed is defined as the square root of the mean of the square of speeds of all molecules.
i.e. `v_(rms)=sqrtbar(v^(2))`
`therefore v_(rms)=sqrt((3kT)/(m))`
RMS speed is the measure of the speed of particles in a gas which is most convenient for problem solving within the kinetic theory of gases.
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