Evidence that molecules of a gas are in constant motion is:
A)winds exert pressure
B)two gases interdiffuse quickly
C)warm air rises
D)energy as heat is needed to vaporize a liquid
E)gases are easily compressed

Question

Quizplus · Accepted Answer

Two gases interdiffusing quickly is evidence of the constant motion of gas molecules, as their movement allows them to mix and spread out evenly. The other choices are related to other properties of gases, but do not provide evidence for their constant motion.

Evidence That Molecules of a Gas Are in Constant Motion