$9\mathrm{.}4.$ We plan to run the reaction of Example $)=4\frac{\text{m}\text{o}\text{l}}{l}$iter,$F_{Ao}=(1000\frac{\text{m}\text{o}\text{l}}{m}in$ in a plug flow reactor kept at $40C$ throughiout to $90\%$ conversion. Find the volume of reactor needed.

$9\mathrm{.}5.$ Redo Example $9\mathrm{.}4$

$9\mathrm{.}7$

$9\mathrm{.}9$

$9\mathrm{.}10$