Question

why the rate diffusion of gases is higher than that of liquids and solids

Answer 1

since the force of attraction between the particles in gases is weaker than liquids
so, the rate of diffusion in gases is faster than that in liquids

hope it helps.

Answer 2

The rate of diffusion in liquids is faster than solids because in liquids molecules have a greater amount of space between them as compared to solids, or we can say they are less tightly packed. also, liquids can flow but solids cannot.

Hope this will help you ..✌