A pressure vessel contains a large volume of CO2 gas at 10 atm pressure. A membrane composed of a poly(ether ketone) polymer with thickness 100 microns and net effective area of 100 cm2 covers a small perforated port in the container. The solubility of CO2 at 10 atm is 6.97 x 10-4 moles/cm3 at 35 \(^\circ\)C. The diffusivity of CO2 in the polymer is known to be 2.29 x 10-8 cm2/s at this temperature. How long will it take for 0.001 moles of CO2 to leak from the container at steady-state? Assume that the amount of carbon dioxide in the surroundings is insignificant. Express your answer in hours

Answer 1

Use this:
http://en.wikipedia.org/wiki/Fick's_laws_of_diffusion

Answer 2

second?

Answer 3

please drwls, what is the answer of a and b

Answer 4

a) 1.74

Answer 5

b) 0.551

Answer 6

a) It's 6264