Question

Why warm air exerts less pressure than cold air?

Answer 1

Explanation:

Greater activity of the heated molecules increases the spacing between neighboring molecules and thus reduces air density. ... Warm air is thus lighter (less dense) than cold air and consequently exerts less pressure

Answer 2

Answer:

Greater activity of the heated molecules increases the spacing between neighboring molecules and thus reduces air density. The decreasing air density then lowers the pressure exerted by the air. Warm air is thus lighter (less dense) than cold air and consequently exerts less pressure.