Question

A gaseous mixture of Helium and Hydrogen contain 20% H2. The number of diffusion stages required if H2 is to be enriched from 20% to 80% by means of gaseous diffusion are

Answer 1

Answer:

Hydrogen gas exists as a diatomic molecule H2 . However, helium gas exists as nonatomic He . rH2/rHe = √(MHe/MH) = √(4/2) = √(2) = 1.4 rH2:rHe = 1.4:1 .