A mixture of 2 moles of helium gas (atomic mass = 4 amu) and 1 mole of argon gas…
CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures
Problem
A mixture of 2 moles of helium gas (atomic mass = 4 amu) and 1 mole of argon gas (atomic mass = 40 amu) is kept at 300 K in a container. The ratio of the rms speeds
(vrms(argon)vrms(helium))
is
(1) 0.32
(2) 0.45
(3) 2.24
(4) 3.16