Question

concentration and media effect on diffusion rate. if one crystal of potassium permanganate diffuses at a rate of 240mm/hour in a liquid and only 60mm/hour in a semisolid, which of the following statements is true if we want the diffusion rate to be the same in both? (select all that apply) check all that apply the concentration of potassium permanganate would need to be higher in the liquid the concentration of potassium permanganate would need to be higher in the semisolid the concentration of potassium permanganate would need to be lower in the semisolid the concentration of potassium permanganate would need to be lower in the liquid

Explanation:

Step1: Recall diffusion principle

Diffusion rate is related to the concentration gradient. To make the diffusion rate the same in two different media (liquid with higher rate and semi - solid with lower rate), we need to adjust the concentration gradient.

Step2: Analyze concentration requirements

Since diffusion is faster in the liquid, to equalize the diffusion rates, the concentration of potassium permanganate in the liquid should be lower and in the semi - solid should be higher to create appropriate concentration gradients for equal diffusion rates.

Answer:

The concentration of potassium permanganate would need to be lower in the liquid.
The concentration of potassium permanganate would need to be higher in the semisolid.