Suppose that we have a CSTR and a PFR$,$ both with a reactor volume of V$.$ By using the two reactors, we want to perform a liquid$-$phase, $1$st$-$order, and irreversible reaction with a rate constant of k$.$ The system has the total volumetric flow rate of v$=$kV$.$ What would be the overall conversion in the following arrangement of the reactors? $($a$)$ A series arrangement of a CSTR and then a PFR$.$ Hallo reconsin $($b$)$ A series arrangement of a PFR and then a CSTR$.($c$)$ A parallel arrangement of a CSTR and PFR with an equal volumetric feed rate to each reactor.