Both heavy and light molecules make up a sample of gas. On average, the faster molecules are the
A)heavy ones.
B)light ones.
C)no difference
D)not enough information

Question

Quizplus · Accepted Answer

According to the Kinetic Molecular Theory, the speed of molecules in a gas is directly proportional to their mass. Hence, the lighter molecules will have a higher speed or velocity compared to the heavier molecules. Therefore, the faster molecules will be the light ones.

Both Heavy and Light Molecules Make Up a Sample of Gas