The liquid-phase reactions A→B A C are each first order in the concentration of A. The feed to a nonisothermal CSTR contains pure A at 45°C and 5 mol/lit. Table 1 lists additional information for the reactions and the reactor. We want to operate this reactor such that the selectivity to B is greater than the selectivity to C, i.e., the rate at which B forms is greater than the rate at which C forms. Item VR value 1000 Q100 P 932 k1 k2 AHRI units lit lit/min g/lit min-1; T in K min -1; T in K cal/mol cal/mol cal/(g K) 3.16 x 1014 exp(-12,500/7) 2.52 x 10° exp(-8, 500/T) -12,000 AHR2 -15,000 Cp 0.22 == (a) Defining the selectivity as S = RB/Rc, determine the temperature to achieve a selectivity of 5. (b) Determine the temperature that gives maximum selectivity for B. (c) Determine the rate at which heat is transferred to the surroundings to achieve a selectivity of 4.