#2 (a) Starting with a schematic and a mole balance, derive the design equation for a plug flow reactor in terms of Xa. (b) Explain why the rate typically decreases as XA increases under "normal kinetics." Think back to the first day of class. (c) Explain why the Van't Hoff equation has a mathematical form that is related to that of the Arrhenius equation. Graphs help. (d) If A + B + 3C, what happens to Keq if we increase P? What actually happens to the partial pressures of the chemical species by Le Chatelier's Principle? Explain in your own words