A sheet of polyethylene 1.5-mm thick is being used as an oxygen barrier at a temperature of 600K. If the flux is 2.48 x 10-5 kg/m2 s, what concentration of oxygen must be maintained on the high-pressure side to ensure that the concentration

Complete Question

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The concentration of  high-pressure side is  

Explanation:

From the question we are told that

    The thickness of the polyethylene is  

     The  temperature is  

      The flux is  

      The concentration on the low-pressure side is  

       The initial diffusivity  is  

       The activation energy for  diffusion is  

Generally the diffusivity  of the oxygen at 600 K can be  mathematically evaluated  as

substituting values  

Generally the flux is mathematically represented as

Where is the concentration of oxygen at the higher side

       So  

substituting values