The vapor pressure of a liquid increases with increasing temperature because ________
A)more molecules can escape from the liquid because their average kinetic energy is greater.
B)the number of gas molecules above the liquid does not change but their average kinetic energy increases.
C)the molecules in the liquid move faster and exert a greater pressure.
D)the ideal gas law states that the pressure is proportional to the temperature.
E)molecules interact less strongly at higher temperatures.

Question

Quizplus · Accepted Answer

As the temperature increases, the average kinetic energy of the molecules in the liquid increases, meaning more of them will have enough energy to escape into the gas phase, increasing the vapor pressure.

The Vapor Pressure of a Liquid Increases with Increasing Temperature