Kinetic Molecular Theory Question 1

A \(\pu{0.5 mol} \) sample of \(\ce{He(g)}\) and a \(\pu{0.5 mol} \) sample of \(\ce{Ne(g)}\) are placed separately in two \(\pu{5.0 L}\) rigid containers at \(\pu{20} ^\circ \text{C}\). Each container has a pinhole opening. Which of these gases, \(\ce{He(g)}\) or \(\ce{Ne(g)}\), will escape faster through the pinhole and why?

\(\ce{He(g)}\) will escape faster because the \(\ce{He(g)}\) atoms are moving at a higher average speed than the \(\ce{Ne(g)}\) atoms.

\(\ce{Ne(g)}\) will escape faster because its initial pressure in the container is higher.

\(\ce{Ne(g)}\) will escape faster because the \(\ce{Ne(g)}\) atoms have a higher average kinetic energy than the \(\ce{He(g)}\) atoms.

Both gases will escape at the same rate because the atoms of both gases have the same average kinetic energy.