AP Chemistryhardmcq1 pt
A solution is prepared by dissolving a nonvolatile solute in a solvent. The vapor pressure of the solution compared to the pure solvent is:
A.Higher
B.The same
C.Lower
D.Cannot be determined
Explanation
Core Concept
Adding a nonvolatile solute lowers the vapor pressure (Raoult's Law) because solute particles occupy surface sites, reducing the number of solvent molecules that can escape into the vapor phase.
Correct Answer
CLower
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