Question 1 Figure 4: Simplified Distillation Column Model i. Connect the most (3) important variables which influence the column operating pressure from figure above "(Hint): To solve this: Firstly: detemine the distillation process objective(s), how does the process begin and keep consistent ii. Discover (2) nonlinear dynamics situations whilst operating distillation column process control (hint\%): Nonlinear process is transient process occurs during influence of disturbances or initial setup. iii. Point out two (2) information gain from the Figure 5 below for distillation unit control system behaviour Figure 2: Effect of DVF and energy inputs on product purities Iv. Analyse (2) contributing factors to in evaluating complete column system response Hint: Look into any option if main variables can be connected by inferential control strategies