Question $5$: An experimental data relating concentration and reaction rate for a reaction

$AR$ is given in the table below. Answer the following questions:

$[20$ points$]$

a$)$ What size of CSTR is required to achieve $75\%$ conversion of a feed stream of

$1000$moles$-\frac{A}{h}r$ at $C_{A0}=1\mathrm{.}2mo\frac{l}{?}$ liter?

b$)$ Repeat part $($a$)$ for a PFR reactor.