A batch fermentation of an aerobic bacterium grown on a substrate, the results are shown in the table:

a) Determine the specific growth rate b) Doubling time c) Determine max and Ks d) determines the true biomass-substrate yield and the maintenance coefficient per substrate e) determine the true yield of biomass-nitrogen

t(h) 0 2 4 6 00 8 10 12 14 16 18 20 X(Kg/m^3) S(Kg/m^3) N(Kg/m^3) 0.1 40 4 0.18 39.83 3.99 0.0323 39.5 3.97 0.0581 39.1 3.94 1.04 37.8 3.88 1.87 35.4 3.78 3.35 32.9 3.59 6 27.2 3.24 10.7 17.1 2.57 17.9 1.1 1.5 18.3 0 4.8