Question

Some moles of O₂ diffuse through a small opening in 18 s. Same number of moles of an unknown gas diffuse through the same opening in 45 s. molecular weight of the unknown gas is :
(a) $32 x \frac{45^2}{18^2}$
(b) $32 x \frac{18^2}{45^2}$
(c) $32 x \frac{45}{18}$
(d) $32^2 x \frac{45}{18}$

Answer 1

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(d) $32^2 x \frac{45}{18}$