Question

four solutes are added to a solvent. all solutes have the same mass and solubility. the surface areas of four solutes are $2\\ \text{mm}^2$, $4\\ \text{mm}^2$, $6\\ \text{mm}^2$, and $10\\ \text{mm}^2$. which solute will dissolve the quickest?
$2\\ \text{mm}^2$
$4\\ \text{mm}^2$
$6\\ \text{mm}^2$
$10\\ \text{mm}^2$

Explanation:

Dissolution rate increases with surface area, as a larger surface area allows more solvent to interact with the solute at once. Among the given options, the solute with the largest surface area will dissolve the quickest.

Answer:

10 mm²