Which statement about the process of diffusion is true?
A) The concentration gradient of a solute depends on the size of the molecule.
B) Equilibrium in a solution is the end point of diffusion.
C) The net movement of particles depends on the temperature of the solution.
D) Diffusion is most efficient over long distances.
E) Diffusion can reduce selective permeability of a membrane.

Question

Quizplus · Accepted Answer

Equilibrium is the point at which the concentration of solute is equal throughout a solution, meaning there is no further net movement of particles. This is the end point of diffusion as it occurs until equilibrium is reached.

Note: The other options are incorrect. A is incorrect because the concentration gradient is dependent on the concentration difference, not the size of the molecule. C is incorrect because temperature can affect the rate of diffusion, but not the direction of diffusion. D is incorrect because diffusion is most efficient over short distances, as it becomes slower and less efficient the farther it has to travel. E is incorrect because diffusion does not affect the selective permeability of a membrane, as it only affects the concentration of solute on either side of the membrane.

Which Statement About the Process of Diffusion Is True