Question

A solute added to a solvent raises the boiling point of the solution because: Select one: a. The solute particles raise the solvent's vapor pressure, thus requiring a higher temperature to cause boiling. b. The temperature to cause boiling must be great enough to boil not only the solvent but also the solute. c. The solute increases the volume of the solution, and an increase in volume requires an increase in the temperature to reach the boiling point (derived from PV

Answer 1

Answer:

See the answer below

Explanation:

The correct answer would be that the solute particles lower the solvent's vapor pressure, thus requiring a higher temperature to cause boiling.

Dissolving a solute particle in a solvent leads to a decrease in the vapor pressure of the solvent above the resulting solution when compared to the pure solvent. The lower the vapor pressure of a liquid, the higher the temperature required for the liquid to boil and vice versa. Hence, a higher temperature would be needed to boil a solvent with dissolved solutes.