Question: 1. (10 points) Experiments are being conducted to determine the suitability of a cellophane membrane 0.029 mm thick for use in an artificial-kidney device. In

1. (10 points) Experiments are being conducted to determine the suitability

1. (10 points) Experiments are being conducted to determine the suitability of a cellophane membrane 0.029 mm thick for use in an artificial-kidney device. In an experiment at 37C using urea as the diffusing solute, the membrane separates two components containing stirred aqueous solutions of urea, where c = 100 g mol/m and c, = 0.5 g mol/m. The mass-transfer coefficients on either side of the membrane have been estimated as ka = kcz = 5.24x10 m/s. Experimental data obtained gave a flux N = 4.19x10* gmol urea/ms at pseudo-steady-state conditions. a. Calculate the permeance By and permeability of the membrane. b. Calculate the percent resistance to diffusion in the liquid films

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