NEET BIOLOGY

Detailed explanation-1: -In solides intractive force between molecules is stronger than gases and liquids . that’s why they have least diffusion.

Detailed explanation-2: -The particles must be able to move around for diffusion to work. Diffusion does not occur in solids because the particles in a solid can only vibrate and cannot migrate from one location to another.

Detailed explanation-3: -Diffusion can take place in gases, liquids, or solids. In solids, particularly, diffusion occurs due to thermally-activated random motion of atoms-unless the material is at absolute zero temperature (zero Kelvin), individual atoms keep vibrating and eventually move within the material.

Detailed explanation-4: -In the liquid state, particles have greater space and weaker force of attraction between them as compared to particles in solid-state. Thus, in liquids, the particles move freely as compared to solids. Hence it has a higher rate of diffusion.