Chemistry - Ideal Gas Question with Solution | TestHub

Equal moles at the same V and T give equal partial pressures, so (d) is false. Average kinetic energy per molecule (3/2 kT) is the same for both; the lighter He has the greater average speed (c). Faster He molecules hit the walls more frequently (a). Average force per collision is set by momentum transfer, which scales as m·v ~ √(mT): heavier Ne molecules transfer more momentum per collision (b). Hence (a), (b), (c).