A rigid, closed container is filled with a gaseous mixture of and at temperature . Which of the foll — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

Average KE per molecule depends only on $T$ ($3/2 kT$), so it is equal (A). $U_{rms} \propto 1/\sqrt{M}$, so ratio is $\sqrt{32/2} = 4$ (B). Total KE depends on moles ($3/2 nRT$), so they are equal if $n$ is equal (D). C refers to momentum transfer per collision, which is higher for heavier mass, but pressure depends on collision frequency too.