A second-order endothermic reaction (ΔH = 25,000 J/mol) takes place in a steady-state, jacketed plug flow reactor.
A → B + C k = 1016e(-15,000/T) cm3/(mol min) T is in kelvin
The reactor feed contains A at 250°C and a concentration of 2.5×10-3 mol/cm3. The tubular reactor diameter is 8.0 cm, and the heat transfer coefficient through the walls is 30 J/(cm2 K min). The fluid in the jacket surrounding the reactor is at 300°C. Is the temperature of the reactor contents immediately downstream from the inlet higher or lower than the feed temperature?