Question

(a) Explain why nitrogen diffuses faster than chlorine.

Answer 1

Answer:

It is obvious that the smaller the molecular weight, the greater is the speed of the molecules of gas. As chlorine gas has a molar weight of Cl2=71g and nitrogen has a molar weight of N2 28g , it is expected that the molecules of chlorine will diffuse slower compared to the molecules of nitrogen.

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Answer 2

The rate of diffusion of a gas depends on the weight of the gas molecules. The heavier the molecules, the slower they move - the lighter the molecules, the faster they move.

Nitrogen molecules weigh about 28 units. Chlorine molecules weigh 71 units. So we would expect nitrogen to diffuse more quickly than chlorine.

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