Develop a spreadsheet to predict as functions of time with concentration, volume and permeate flows for a batch ultrafiltration. Assume that the flux depends on concentration as follows: J(L/M2/H)=AEXP(bC) where C is the retentate concentration in g/1. Assume that the recirculation rate is kept high enough that shear rate dependence is eliminated. Do a sample run with C0=0.5g/1,Cminal=50g/1,A=50, and b=0.02. Assume a filtration area of 19.4M2 and an initial volume of 3255L. Assume ( protein )=1.0 or (protein )=0.95 or (protein )=0.90