Question

What is the definition of "diffusion"?

Answer 1

Transport from high concentration zone to low concentration zone.

Explanation:

Diffusion is a transport phenomenon tend to cause movement of molecules, substances, etc. from regions of high concentrations to regions of low concentrations.

Answer 2

See below.

Explanation:

• Diffusion can be defined as the net downward movement of given substance like ions from higher concentration to an area of lower concentration.
• It can occur in any medium.
• The diffusing particle can be solid liquid or gas.
• The presence of semipermeable membrane is not required.