Asked by Yoda

A gaseous mixture at a constant temperature contains O2, CO2 and He. List the three gases in order of increasing average molecular speed. THANKS.
Answered by DrBob222
V<sub>rms</sub> = sqrt(3RT/M)
Molar mass is in the denominator; therefore, the V decreases as the molar mass increases.
Answered by Yoda
So what factor is used to determine the molecular speed?
Answered by DrBob222
Isn't it the molar mass?
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