Two identical containers of water have the same dye added to each of them, but at different concentrations. Why does the dye diffuse through the solvent faster when added at a higher concentration?
A) Because the dye has higher Brownian motion at higher concentrations
B) Because there is a smaller difference in the concentration gradient
C) Because there is a larger difference in the concentration gradient
D) Because there is a smaller difference in the rate of net diffusion
E) Because there is a larger input of energy facilitated by the more concentrated dye

Question

Quizplus · Accepted Answer

Because there is a larger difference in the concentration gradient. Diffusion rate is directly proportional to the concentration gradient; the greater the difference in concentration between two areas, the faster the molecules of the dye will move from the area of higher concentration to the area of lower concentration to reach equilibrium.

Two Identical Containers of Water Have the Same Dye Added