Question

1. when does diffusion of a substance stop? osmosis: ck12 2.14

Explanation:

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. It stops when the concentration of the substance becomes equal throughout the space (i.e., when equilibrium is reached). At equilibrium, the net movement of particles ceases because the concentration gradient (the difference in concentration between two regions) is eliminated, and particles move equally in all directions, resulting in no overall change in concentration.

Answer:

Diffusion of a substance stops when the concentration of the substance is equal throughout the space (when equilibrium is reached), as there is no longer a concentration gradient to drive the net movement of particles.