chemical reaction engineering

Question 2: (Hand calculation upto some point is a must) Consider the following gas phase reaction in a flow reactor B is the desired product and X and Y are the foul pollutants that are expensive to get rid of. The specific reaction rates are at 27C(300K ) and 4atm pressure. Pure A enters the system with a volumetric flow rate of 10dm3/min [a] Sketch the instantaneous selectivity (SBXX,SB/Y,SB(X+Y) as a function of concentration in the CSTR. The activation energy of the reactions are, E1=20000cal/mol;E2=10000cal/mol;E3=30000cal/mol [b] What temperature would you recommend for a single CSTR with a space time of 10 minutes and an entering concentration of A,CAO=0.163mol/dm3