AW1[Hole between two rooms] A container is divide
1/4
into two rooms, I and II, by a partition with a sma
hole of diameter. Helium gas in the two rooms is he
at temperatures T₁ =150 K and T₂=300 K
respectively, through heating of the walls. Figure
(a) Describe what happen in the effusion regime an
diffusion regime and discuss by which conditions the
gases come to the steady state?
(b) What is the ratio of the mean free paths/2
reaching the steady state when d < (c) What is the ratio of the mean free paths/12
reaching the steady state when d» l₁, d » 12.