Graham's Law of Diffusion
Graham's Law states that the rate of diffusion of a gas is inversely proportional to the square root of its molar mass. This means that lighter gases diffuse faster than heavier gases.
Molar Masses
* Hydrogen (H₂): 2 g/mol
* Methane (CH₄): 16 g/mol
Comparison
Since hydrogen has a much lower molar mass than methane, it will diffuse significantly faster.
In simpler terms: Imagine two groups of people, one group of very light people and another group of much heavier people. If they all start running at the same time, the lighter group will cover more ground faster because they have less mass to carry. The same principle applies to gas molecules.
