Dissolving a solute such as KOH in a solvent such as water results in
A)an increase in the melting point of the liquid.
B)a decrease in the boiling point of the liquid.
C)a decrease in the vapor pressure of the liquid.
D)no change in the boiling point of the liquid.

Question

Quizplus · Accepted Answer

Dissolving a solute in a solvent results in a decrease in the vapor pressure of the liquid. This is because the presence of solute molecules reduces the number of solvent molecules available to escape into the gas phase, thereby decreasing the rate of evaporation and lowering the vapor pressure. Neither the melting point nor the boiling point of the liquid is significantly affected by the presence of a solute, except in cases where the solute participates in intermolecular interactions that affect the physical properties of the resulting solution.

Dissolving a Solute Such as KOH in a Solvent Such