Question

A mixture of 2 mole of He gas ( atomic mas = 4 amu) and 1 mole of argon gas( atomic mass = 40 amu is kept at 300 kelvin in a container. the ratio of rms speed is Vrms(Helium)/Vrms(argon).
(a) 0.32
(b) 0.45
(c) 2.25
(d) 3.16

PLZ ANSWER THIS I WILL MARK AS BRAINLIST

AND FOLLOW MY AC/ ​​

Answer 1

Vrms= 3RT/M

Thus we get required ratio as MAr/MHe=10

=3.16