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(10%) A new package has been designed for a food material by laminating two different plastics A and B. The oxygen permeability and thickness

(10%) A new package has been designed for a food material by laminating two different plastics A and B. The oxygen permeability and thickness of each plastic are PmA, 1A and Pm, B, respectively. Formulate the oxygen transfer rate if the driving force is AP and the surface area of the package is A.

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