Which of the following effects will make PV/nRT less than one for a real gas?
A)The gas molecules are large enough to occupy a substantial amount of space.
B)A large number of molecules have speeds greater than the average speed.
C)The gas molecules have a very low molar mass.
D)The gas molecules attract one another.
E)None of these.

Question

Quizplus · Accepted Answer

The gas molecules attracting each other will cause them to be pulled closer together than they would be in an ideal gas. This decreases the volume and increases the pressure, resulting in a smaller value of PV/nRT.

Which of the Following Effects Will Make PV/nRT Less Than