1. (24 pts.) The multiple, first-order reactions A k = 3k R k = S = 2k occur in a steady-state, isothermal, constant-v PFR. The conversion is found to be XA = 0.918. It is decided to replace the constant-v PFR with a constant-v CSTR of the same volume (and same flowrate as well) as the PFR. Calculate: (a) (12 pts.) The conversion, XA, that can be achieved in the CSTR. (b) (12 pts.) The yield, = CR/(CAO - CA) that can be attained in the CSTR.