A gas mixture in a 10 mm plane at 330 K and 250 kPa is composed of 5 mol% CO 2 , 30 mol% C 2 H 4 , 40 mol% C 2 H 6 , 25 mol% C4H10, where only CO 2 is diffusing. The partial pressure of CO 2 at both...

A gas mixture in a 10 mm plane at 330 K and 250 kPa is composed of 5 mol% CO₂, 30 mol% C₂H₄, 40 mol% C₂H₆, 25 mol% C4H10, where only CO₂
is diffusing. The partial pressure of CO₂
at both ends are 15 KPa and 1.5 kPa.

a) Estimate the mean diffusivity, Dam of CO₂
in the gas mixture.

b) Calculate the rate of mass transfer, N_A of CO₂
through the gas mixture.

c) Analyze and discuss the effects of temperature and pressure on NA.

d) If the partial pressure at both ends are 18.5 kPa and 5 KPa, calculate the drift factor and discuss its effect on N_A.