Construct a graph and conversion at equilibrium in a reactor where the occurrence, $($A$$S$)$ of direct and inverse first order, as a function of temperature T$,$ is known: H $(298$ K$)=-40,000$ cal$/$mol; H$.(298$ K$)=-60,000$ cal$/$mol; CM $50$ cal$/$mol$.$K; CPS $50$ cal$/$mol$.$K and equilibrium constant K$.100,000$ to $298$ K$.$

$-$Is this occurrence endo or exothermic? Why?

$-$Demonstrate that the operating line of the adiabatic tubular reactor $($x versus T$)$ is a straight line, if the thermodynamic properties are assumed constant.

$-$Calculate the maximum conversion that could be obtained if the tubular reactor was fed at $300$ K and operated adiabatically.

$-$Based on the deduced solution, indicate how it would be possible to change the orientation of this line of operation