B$.$ A solid catalyzed gas phase reaction $A4R$ is conducted at $3\mathrm{.}2$ atm and $117C$ in a plug flow reactor containing $10g$ of catalyst and $17.$ using a feed consisting of the partially converted product of $20\frac{l}{h}$ of pure unreacted $A.$

$\backslash$table$[[$Run$,1,2,3,4],[C_A$ in$,0\mathrm{.}1,0\mathrm{.}08,0\mathrm{.}06,0\mathrm{.}04],[C_A$ out,$0\mathrm{.}084,0\mathrm{.}07,0\mathrm{.}055,0\mathrm{.}038]]$

Evaluate the rate equation for the reaction.