Solution:
The above statement is true.Gases have the highest rate of diffusion. Diffusion is the intermixing of particles of different types of matter that are solid, liquid or gas. Gases have the highest diffusion rate, while solids have the minimum diffusion rate. Thomas Graham gave the law for the diffusion of gases. It states, ‘The rate of diffusion of a gas is inversely proportional to the square root of its density. Thus, it is clear that the lighter gases having low densities diffuse more quickly than the heavier gases having high densities. For example, hydrogen diffuses more quickly than methane or carbon dioxide.
