Which of the solutions shown here will have the highest vapor pressure? White circles indicate solvent molecules; black circles indicate molecules of a nonvolatile solute.

Question

Quizplus · Accepted Answer

The solution with only solvent molecules (A) will have the highest vapor pressure because the addition of a nonvolatile solute (represented by the black circles) will lower the vapor pressure of the solution. In solutions B, C, and D, the concentration of the nonvolatile solute increases, leading to a decrease in vapor pressure.

Which of the Solutions Shown Here Will Have the Highest