Average Speed of Hydrogen molecules?

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What's the average speed of hydrogen molecules at room temperature and how do you figure it out? Is there an equation?

thanks
 
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V = sqrt(3*T*k/m)

T = absolute temperature (in Kelvin)
k = Boltzmann constant = 1.3805*10^-23 J/K
m = mass of the gas particle

For anything in thermal motions and gases look up "Boltzmann"