Qeestion $2$

A$.$ Develop the design equation of a plug flow reactor $($PFR$)$ in terms of the fractional conversion $))=(f(x{)}_A(0$ and concentration $))=(f(C{)}_A(0$ of a reactant $A,$ for the second order reaction $(2AR).$

B$.$ Consider the plug flow reactor set$-$up sbown according to the schematic below.

Branch A has a molar feed rate $87\mathrm{.}6mo\frac{l}{m}in.$ What frection of the feed should go to branch C$?$