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A mixture of 2 moles of helium gas ((ato...

A mixture of 2 moles of helium gas (`(atomic mass)=4a.m.u`) and 1 mole of argon gas (`(atomic mass)=40a.m.u`) is kept at 300K in a container. The ratio of the rms speeds `((v_(rms)(helium))/((v_(rms)(argon))` is

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Using `(V_(1rms))/(V_(2rms))=sqrt((M_(2))/(M_(1)))`
`(V_(rms)He)/(V_(rms)(Ar))=sqrt((M_(Ar))/(M_(He)))=sqrt(40/4)=3.16`
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