(b) [6 pts] A substrate inhibiting enzyme reaction Senzyme products is carried out in a CSTR with residence time . The inlet concentration of the substrate is CS0=40mmol/dm3, and the rate law is defined as rS=Km+CS+RICS2VmaxCS where Vmax=1.8mmol/dm3min,Km=16mmol/dm3, and Kl=0.5dm3/mmol (a) At what substrate concentration, Css, will the rate be at its maximum value? (b) What CSTR residence time is needed to operate this reaction at its maximum rate? (V=rFA0X)