Rate of diffusion of gases is inversely proportional to the square root of their densities under similar conditions.

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Points to Remember

Graham’s Law of diffusion can also be stated as the rate of diffusion of gases is inversely proportional to the square root of their molecular masses.

Application of Graham’s Law of Diffusion:

1. To determine the vapour density and molecular mass of a gas.
2. To separate gases from their mixture.
3. To separate the isotopes of same element.

Related Concepts

Diffusion, Effusion

Related Questions

If the rate of diffusion of CH₄ is twice of that of a gas X, then what is the molecular