Asked by selly

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 ∘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.



(b) If the diffusivity is observed to double when the temperature is increased by 10 degrees C, what is the activation energy for diffusion? Express your answer in units of eV.
Answered by anonymous
somebody answer
Answered by p
please :(
Answered by Anonychem
yes, we need help
Answered by Anonychem
anyone? I am one percent away from A, this question left
Answered by helpmeimbad
you should be ashamed of yourself
Answered by someguy
a) 1.74
Answered by qwerty
b=0.551
Answered by ssss
You have 333 mL of alkaline solution at pH = 11.1. You wish to neutralize this by reacting it with 222 mL of acid. What must be the value of the pH of the acid?
There are no AI answers yet. The ability to request AI answers is coming soon!