Engineering, 10.06.2020 19:57, ProfS7160

Carbon dioxide at 2 atm and 25°C is stored in a cylinder with a flat, circular plug stopper of vulcanized rubber, 3 cm thick and 2 cm2 in area. Experimental data at 25°C give the solubility of CO2 in rubber as 0.90 cm3 (at 0°C and 1 atm )/cm3 of rubber/atm CO2 and the diffusivity of CO2 in rubber at 0.11 × 10−5 cm2/s , independent of pressure. Neglecting mass transfer resistances in the gas on either side of the stopper and a pressure of 1 atm outside of the cylinder, calculate rate of loss of CO2 from the cylinder in mol/s.

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Carbon dioxide at 2 atm and 25°C is stored in a cylinder with a flat, circular plug stopper of vulca...