The diffusion coefficient of oxygen O2 in polyethylene is 4.5 x 10-11 m2/s at room temperature. a) What is the steady-state mass flux of O2 through a 0.50mm thick sheet of polyethylene, if the high-pressure concentration of O2 is 2.0 kg/m3, and the low-pressure side is 0.5 kg/m3?

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The diffusion coefficient of oxygen O2 in polyethylene is 4.5 x 10-11 m2/s at room temperature.
a) What is the steady-state mass flux of O2 through a 0.50mm thick sheet of polyethylene, if the high-pressure concentration of O2 is 2.0 kg/m3, and the low-pressure side is 0.5 kg/m3?

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