Question

air temperature is related to air pressure in that...(select all that apply)
a decreasing the air temperature will increase collisions.
b increasing temperature would increase the energy of the molecules, thus increasing the pressure.
c increasing temperature would increase the velocity of the molecules, thus increasing the pressure.
d increasing air temperature will help to increase air pressure.

Explanation:

According to the kinetic - molecular theory, temperature is related to the average kinetic energy of gas molecules. Higher temperature means higher average kinetic energy, which leads to higher molecular velocity. More energetic and faster - moving molecules collide more forcefully and frequently with the container walls, increasing the pressure. Decreasing air temperature reduces molecular motion and collisions.

• Option A: Decreasing air temperature reduces the kinetic energy of molecules, leading to fewer collisions, so A is incorrect.
• Option B: Higher temperature increases molecular energy, which in turn increases pressure as molecules collide more forcefully with container walls.
• Option C: Higher temperature increases molecular velocity, resulting in more frequent and forceful collisions and thus higher pressure.
• Option D: Generally, an increase in air temperature leads to an increase in air pressure under constant volume and amount of gas conditions.

Answer:

B. increasing temperature would increase the energy of the molecules, thus increasing the pressure.
C. increasing temperature would increase the velocity of the molecules, thus increasing the pressure.
D. increasing air temperature will help to increase air pressure.