Consider the first order liquid phase chemical reaction

A$$B $+$ C k $=0\mathrm{.}05$ min$-1$

CA$0=2$ mol$/$L

u $0=2$L$/$s

Determine the concentration of A leaving the last reactor and the conversion for $($a$)$ two and $($b$)$ three CSTRs placed in series. Each reactor is $1200$ L$.$ Assume all the reactors operate at the same temperature and the volumetric flow rate is constant.