Question 1 P8-4A Consider the following system of gas-phase reactions: -1 A- A Xix=k_ch2 kq=0.004(mol/dm3)12. min Brg=kzCA ke=0.3 min! A Y ry=kzc kz=0.25 dm3/mol-min B is the desired product, and X and Y are foul pollutants that are expensive to get rid of. The specific reaction rates are at 27C. The reaction system is to be operated at 27C and 4 atm. Pure A enters the system at a volumetric flow rate of 10 dm/min. (a) Sketch the instantaneous selectivities (SB/x, SB/y, and SB/XY = TB/(rx + ry)) as a function of the concentration of CA. (b) Consider a series of reactors. What should be the volume of the first reactor? c) What are the effluent concentrations of A, B, X, and Y from the first reactor? (d) What is the conversion of A in the first reactor? (e) If 99% conversion of A is desired, what reaction scheme and reactor sizes should you use to maximize SB/XY? = (f) Suppose that E= 20,000 cal/mol, Ex = 10,000 cal/mol, and E3 = 30,000 cal/mol. What temperature would you recommend for a single CSTR with a space time of 10 min and an entering concentration of A of 0.1 mol/dm?? (g) If you could vary the pressure between 1 and 100 atm, what pressure would you choose