• (A) The binary diffusivity in liquids is of the order of 10-5 cm2 /sec
• (B) Molecular diffusion in solid is much faster than that in liquids
• (C) Particles movement from higher concentration to lower concentration takes place in diffusion process
• (D) According to Poiseuille's law, the permeability decreases with increase in temperature for flow of a gas through a given capillary