$2-(20$ pts$)$ The liquid$-$phase reaction $A+BC$ follows an elementary rate law and is carried out isothermally in a flow system. The concentrations of the A and B feed streams are $2M$ before mixing. The volumetric flow rate of each stream is $5d\frac{m^3}{m}in,$ and the entering stream temperature is $300K.$ The streams are mixed immediately before entering. Two reactors are available. One is a $200\mathrm{.}0-d{m}^{3}CSTR$ that can operate at $77C,$ and the other is a $800\mathrm{.}0-d{m}^{3}PFR$ at $300K.$ Kinetic parameters of the reaction are; $k=0\mathrm{.}07d\frac{m^3}{m}ol-$min at $300K$ and $E=20$kca$\frac{l}{m}ol.$

Which reactor and what conditions do you recommend? Explain the reason for your choice. Back up your reasoning with the appropriate calculations.