Question

which of the following is not helpful in increasing the dissolving rate of a solute? 1 point heating the solvent stirring the solution freezing the solution grinding the solute

Answer 1

Freezing the solution is not helpful in increasing the dissolving rate of a solute because it decreases the kinetic energy and movement of the solvent molecules, slowing down the dissolving process.

Step-by-step explanation:

The process by which a solute dissolves in a solvent to form a solution involves several factors that can affect the rate of dissolution.

Heating the solvent increases the kinetic energy of its molecules, leading to more frequent and energetic collisions with the solute, which increases the dissolving rate.

Stirring the solution also helps by bringing fresh solvent into contact with the solute, facilitating quicker dissolution.

Grinding the solute increases the surface area, allowing more solvent molecules to collide with the solute, thereby increasing the rate of dissolution.

In contrast, freezing the solution would decrease the kinetic energy of the molecules, reduce their movement, and thus slow down the rate at which the solute dissolves.