Question

m.2 diffusion across membranes
which of the following statements describes how the solution will change over time?
for the solute particles to reach equilibrium, more particles will move across the membrane to the left than to the right.
for the solute particles to reach equilibrium, more particles will move across the membrane to the right than to the left.
because the solute particles have reached equilibrium, the same number of particles will move across the membrane in each direction.

Explanation:

Diffusion is the movement of solute particles from an area of higher concentration to an area of lower concentration until equilibrium is reached. In the given image, there are more solute particles on the right - hand side compared to the left - hand side. So, for the solute particles to reach equilibrium, more particles will move from the right (higher concentration) to the left (lower concentration).

Answer:

For the solute particles to reach equilibrium, more particles will move across the membrane to the left than to the right.