One of the most important steps in performing process simulation is choosing the right thermodynamic method for calculating thermodynamic properties, such as the activity coefficient. a) Use ASPEN to create Txy and activity coefficients plots of the following systems, using IDEAL, UNIQUAC , and NRTL methods. i. Isopropyl alcohol and Isopropyl ether ii. Water and Ethanol b) What are the differences between the results using the three different methods? Which one i more accurate? Why? c) Use the "methods assistant" to determine the most appropriate method for each system. "Don't Gamble With Physical Properties For Simulations" by Eric C. Carlson, is also a recommended reading