At a given temperature the ratio of root-mean-square velocities of two different gases of molecular weights M1 and M2 respectively is:
1
\(\sqrt{\dfrac{M_1}{M_2}}\)
2
\(\sqrt{\dfrac{M_2}{M_1}}\)
3
\(\dfrac{M_1}{M_2}\)
4
\(\dfrac{M_2}{M_1}\)
5
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