4. As process engineer at polyester processing facility, your teammate is proposing to run a selfcatalyzed process because no cost will be incurred buying acids, besides the reaction equilibrium constants for acid catalyzed and self-catalyzed reactions have the same numeric value: ke=0.08kg eq1min1 and ks=0.08kgeq2min1 with an initial concentration of 12.5eqkg. Present your case to support or correct this opinion by making a plot of the degree of polymerization (Xn) against time to achieve an extent of reaction (p)=0.998 for both the acid and self-catalyzed scenarios and clearly discuss the observed trends and ratio of production rounds between the processes. (15 marks)