Question 4(20 Points) A gas is stored at room temperature and 10 atm in a metallic cylindrical with a circular polymen stopper tom diameter and 2 em thick). The rate of the gas fous through the polymeric stopper is 0.1 molh and the gas solubileyin the polymer is 0.7 molim Pa a) (10 Paines) Calculate the gas permeability > (10 Point) Calculate the gas diffinivity in the polymer in omnis Pate spacing 0.7 0.6 0.5 0.4 0.3 36 24 18 12 0.2 G 0.1 0.07 0.06 0.05 0.04 0.03 0.01 0.5 0.7 1.0 20 0.02 0.03 0.05 0.07 0.1 0.2 0.3 FILM, VMX P 4VM (-4) O'Connell correlation for abortion column E. = 1597 -0.199100(M)-0.0096 09 () For membrane gas separation NE