Posted by Chelsea on Sunday, October 13, 2013 at 7:51pm.
where R=8.314 J/(mol·K) and ℳ is molar mass in kilograms per mole. Note that a joule is the same as a kg·m2/s2.
What is the rms speed of N2 molecules at 335 K?
What is the rms speed of He atoms at 335 K?

Chemistry #26  DrBob222, Monday, October 14, 2013 at 1:42am
rms = sqrt (3RT/M)
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