Question

Equal moles of h2 and o2 gas are placed in a container with a pin hole through which both can escape

Answer 1

H2 gas will effuse more or escape earlier than O2 in accordance with GRAHAM'S LAW OF DIFFUSION.

the molecular mass of H2 is 2 amu whereas the molecular mass of O2 is 32 amu.

the more the molecular mass the less the effusion and vice versa.....

hope it helps u......