was carried out adiabatically in the liquid phase and the data in the following table were obtained.

$\backslash$table$[[x,0\mathrm{.}0,0\mathrm{.}2,0\mathrm{.}4,0\mathrm{.}6,0\mathrm{.}65],[-r_A(kmo\frac{l}{m^3}*hr),39,53,59,38,25],[,,,,,]]$

Calculate the volume of each of the reactors for an entering molar flow rate of $n-$butane of $50$kmo$\frac{l}{h}r.$

What do you think about the proposed reactors' arrangement$/$order$?$ Would you modify it$?$ Discuss your answer.