The ideal gas model assumes that molecules have infinitesimal size. Consider one molecule bouncing around in the container. As the molecule's size increases relative to the size of the container, how will the average pressure $P$ that it exerts change, other things being held constant?
A) $\boldsymbol{P}$ increases.
B) $P$ does not change.
C) $P$ decreases.
D) One does not have enough information to say.

Question

Quizplus · Accepted Answer

As the size of the molecule increases relative to the container, it effectively reduces the volume available for the molecule's motion. According to the ideal gas law ($PV = nRT$), if the volume decreases while the temperature and the amount of substance remain constant, the pressure exerted by the gas increases.

The Ideal Gas Model Assumes That Molecules Have Infinitesimal Size PPP

The Ideal Gas Model Assumes That Molecules Have Infinitesimal Size $P$