States of Matter 1 Question 36

36. Rate of diffusion of a gas is

$(1985,1 \mathrm{M})$

(a) directly proportional to its density

(b) directly proportional to its molecular weight

(c) directly proportional to the square root of its molecular weight

(d) inversely proportional to the square root of its molecular weight

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Solution:

  1. Rate of effusion $\propto \frac{1}{\sqrt{M}}$,