A reversible reaction, A → B, takes place in an adiabatic plug-flow reactor (PFR). Select either an exothermic (ΔH < 0) or an endothermic (ΔH > 0) reaction. The black curve is the equilibrium conversion as a function of temperature from the van't Hoff equation.  The blue line is conversion as a function of temperature from the adiabatic energy balance.  The intersection of the curve and the line is the conversion at equilibrium (X_e)and the adiabatic temperature at equilibrium (T_e). You can vary the feed temperature and the molar ratio of inert to reactant in the feed.