a) P=Qk/(AtΔP)
b) P=Qt/(AkΔP)
c) P=Q/(AktΔP)
d) P=QA/(ktΔP)
Answer: a
Explanation: Permeability can also be calculated by the formula- P=Qk/(AtΔP). Where, P:Permeability, Q:Quantity of permeant, k:thickness, A:area, t:time, ΔP: pressure drop across polymer. Permeability is directly proportional to Quantity of permeant and thickness and inversely proportional to area, time and pressure difference.
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