$3-(30/100).$ Consider the production of $1,1-$dichloroethane $(C_2{H}_{4}C{l}_2)$ from ethylene $(C_2{H}_4)$ and chlorine $(C{l}_2).$ Reaction is given bellow. This gas$-$phase reaction is the first step in producing polyvinyl chloride $($PVC$).$ The feed ratio of reactants is $2$ moles chlorine: $1$ mole ethylene. You may assume $h_{rxn}^o$ does not change with temperature. Calculate the maximum temperature at which $90\%$ conversion can be obtained at a pressure of $1$ bar.

$C_2{H}_4(g)+C{l}_2(g)>C_2{H}_{4}C{l}_2(g)$

$\backslash$table$[[$Formula$,$Name,Phase,Alifios $\frac{k}{m}ol,$Aofiss $\frac{k}{m}ol$