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$20 dm^3 of SO_2$ diffuses through a porous partition in 60 Seconds. What Volume be $O_2$ will diffuse under similiar conditions in 30 second?

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$\large\frac{r_1}{r_2} = \large\frac{V_1}{t_1}\times\large\frac{t_2}{V_2}$
$\;\;\;\;\;\;\;\; = \sqrt{(\large\frac{M_2}{M_1})}$
$V = 14.14 dm^3$
Hence answer is (b)
answered Feb 14, 2014 by sharmaaparna1

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