Even when the temperature of a pan of water is below the boiling point,some water still evaporates.This is because
A)of convection.
B)the kinetic energies of individual water molecules vary above and below the average value.
C)the humidity always increases.
D)none of the above

Question

Quizplus · Accepted Answer

Even when the temperature of the water is below the boiling point, some water molecules still have enough kinetic energy to escape into the air as water vapor. This is because the kinetic energies of individual water molecules vary above and below the average value. Choice A (convection) is incorrect because convection refers to the transfer of heat through the movement of a fluid. Choice C (humidity always increases) is incorrect because humidity would only increase if more water vapor was added to the air than was evaporating from the water.

Even When the Temperature of a Pan of Water Is