Which of the following molecules/atoms will exert a greater force when it strikes the wall of the container under ideal conditions?

Question

Quizplus · Accepted Answer

The force exerted by a molecule or atom when it strikes the wall of a container under ideal conditions is related to its momentum (mass times velocity). Although helium atoms have a much lower mass compared to the other options, their high velocity (800 m/s) compensates for this, resulting in a greater force upon impact due to the higher momentum change upon collision with the container walls.

Which of the Following Molecules/atoms Will Exert a Greater Force