Reactant A decomposes by three simultaneous reactions to form three products; one that is desired B and two that are undesired X and Y. According to the following reaction data:

Calculate:

1. The maximum selectivity for B and the corresponding concentration of C_A (exit concentration)
2. The volume of a CSTR if reactant A enters at a concentration of 1.6M and a volumetric flow rate of 5L/s and leaves at C_A (calculated above)
3. The exiting concentrations of products B, X and Y