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Question 4 (20 Points) A gas is stored at room temperature and 10 atm in a metallic cylindrical with a circular polymeric stopper (1 cm

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Question 4 (20 Points) A gas is stored at room temperature and 10 atm in a metallic cylindrical with a circular polymeric stopper (1 cm diameter and 2 cm thick). The rate of the gas loss through the polymeric stopper is 0.1 mol/h and the gas solubility in the polymer is 0.7 mol/m".Pa. a) (10 Points) Calculate the gas permeability b) (10 Points) Calculate the gas diffusivity in the polymer in cmls

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