Helium Gas Is Being Pumped into a Rigid Container at a Constant

Multiple Choice

Helium gas is being pumped into a rigid container at a constant temperature. As a result, the pressure of helium in the container is increasing. Select the one correct statement below.

A) As the pressure increases, helium atoms move faster, on average.
B) As the pressure increases, helium atoms move more slowly, on average.
C) As the pressure increases, the volume of the container must decrease.
D) As the pressure increases, helium atoms stay closer to the wall of the container, on average.
E) As the pressure increases, there are more collisions of helium atoms with the container wall.