Which statement is false?
A) The vapor pressure of a solvent over a solution decreases as its mole fraction increases.
B) The solubility of a gas increases as the temperature decreases.
C) The vapor pressure of a solvent over a solution is less than that of pure solvent.
D) The greater the pressure of a gas over a solution, the greater its solubility.
E) Ionic solutes dissociate in solution, causing an enhancement of all colligative properties.

Question

Quizplus · Accepted Answer

The vapor pressure of a solvent over a solution increases as the mole fraction of the solvent increases, not decreases. This is because a higher mole fraction of solvent means a closer approach to the behavior of the pure solvent, which has higher vapor pressure than when it is in a solution.

Which Statement Is False