Question
How does mass/ bulk flow of substances differ from diffusion?

Answer

S.No
Mass Flow
Diffusion
1.
It is the movement of substances in bulk or en masse from one point to another due to pressure differences between the two points.
It is the movement of substances from a region of higher concentration/ pressure to a region of lower concentration or pressure.
2.
All substances dissolved or suspended in water, move at the same pace.
Different substances move independently depending on their concentration gradients.

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