As the concentration of a solute in a solution increases,the freezing point of the solution ________ and the vapor pressure of the solution ________.
A)increases, increases
B)increases, decreases
C)decreases, increases
D)decreases, decreases
E)decreases, is unaffected

Question

Quizplus · Accepted Answer

The freezing point of a solution decreases as the concentration of a solute increases because the solute particles disrupt the formation of the solid phase of the solvent. The vapor pressure decreases because the solute particles occupy space at the surface of the solution, reducing the number of solvent molecules that can escape into the vapor phase.

As the Concentration of a Solute in a Solution Increases,the