Provide a solution to answer the problem manually and with octave codes.

Following fermentation, biomass is separated from the broth, often by centrifugation. Then the wet biomass is washed to recover the occluded broth, if the desired product is in the broth, e.g., if the bioproduct is extracellular. A 1,000kg biomass sample has been freed of broth and found to weigh 450kg. (a) What is the average porosity of the biomass if the density of the broth is 1,050kg/m3, the biomass density is 1,150kg/m3, and the wash liquid is water at 1,000kg/m3 ? (b) The following experimental wash data were obtained for S/So as a function of W