As air temperature increases, the speed of the molecules in a mass of air ________ and the air pressure ________.
A) increases; increases
B) increases; decreases
C) decreases; increases
D) decreases; decreases

Question

Quizplus · Accepted Answer

As air temperature increases, the speed of the molecules increases because they have more kinetic energy. This increase in molecular speed leads to an increase in air pressure, as the molecules collide more frequently and with greater force against surfaces.

As Air Temperature Increases, the Speed of the Molecules in a Mass