Graham's Law
What is Graham's Law?
Graham's law of effusion states that the rate of effusion (or diffusion) of a gas is inversely proportional to the square root of its molar mass. Mathematically, rate₁/rate₂ = √(M₂/M₁), where M represents the molar mass of each gas. This law explains why lighter gases such as hydrogen and helium diffuse much faster than heavier gases and is used in isotope separation processes.
Key Facts
Frequently Asked Questions
Graham's law of effusion states that the rate of effusion (or diffusion) of a gas is inversely proportional to the square root of its molar mass. Mathematically, rate₁/rate₂ = √(M₂/M₁), where M represents the molar mass of each gas. This law explains why lighter gases such as hydrogen and helium diffuse much faster than heavier gases and is used in isotope separation processes.