Question: You are asked to help design a chemical purification process using diffusion of the impurities through a polymer membrane. The customer wants to reduce the

You are asked to help design a chemical purification process using diffusion of the impurities through a polymer membrane. The customer wants to reduce the time it takes to
purify the chemical stream. What might you suggest to increase the rate of purification? (Note: "Free volume" is the amount of "open space" in a polymer.)
A. Switch to a polymer membrane with less free volume.
B. Switch to a polymer membrane with more free volume.
C. Raise the temperature of the process.
D. Lower the temperature of the process.
Recommend A only.
Recommend B only.
Recommend Conly.
Recommend D only.
Recommend B & D.
Recommend B& C.
Recommend A& C
Recommend A& D

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