PATHOLOGY

Detailed explanation-1: -Diffusion is the process of a substance spreading out to evenly fill its container or environment. In a solution, a concentrated solute diffuses to spread evenly in its solvent. In air, gas molecules diffuse to mix thoroughly. Substances diffuse from areas of high concentration to low concentration.

Detailed explanation-2: -What is diffusion? Diffusion is the process by which particles of one substance spread out through the particles of another substance. Diffusion is how smells spread out through the air and how concentrated liquids spread out when placed in water.

Detailed explanation-3: -Diffusion is the movement of a substance from a region of high concentration to a region of low concentration. Diffusion flux is proportional to the negative gradient of concentrations. In other words, particles move from higher concentration to regions of lower concentration.