To solve this assignment: Q1 • Handwritten work on A4 unruled sheet is acceptable Club all the pages of your solution and upload a single Pdf • Plag of any kind is not acceptable Try to provide detailed work with proper explanation Specific instructions: For all questions, please use the following constants for Antoine equations: Ant B In SVP = Ant A- T + Ant C Ant A 15.726 Ant B 1872.46 Ant C -25.16 Component propane n-butane 15.6782 2154.9 -34.42 n-pentane 15.8333 2477.07 -39.94 n-hexane 15.8366 2697.55 -48.78 n-heptane 15.8737 2911.32 -56.61 n-octane 15.9426 3120.29 -63.63 Note that SVP is the saturated vapor pressure (mm Hg), T is the temperature (K) and 1 bara-750.062 mmHg. Relevant assumptions are mentioned in the questions but if there is missing information, you should state and use reasonable assumptions in your calculations. A tray distillation column is used to separate a multicomponent mixture of propane, n-butane, n-pentane, and n-hexane. Vapor leaving the first tray (uppermost tray) is then fed to a partial condenser which operates at 3.07 bara. The distillate composition is shown in Table 1 and the external reflux ratio is 2.5. Table 1. Distillate composition Component n-propane n-butane n-pentane n-hexane Composition (mol basis) 0.05 0.75 0.12 0.08 a. Sketch a schematic diagram for the process clearly showing the flow of vapor and liquid entering and leaving the column first tray (uppermost tray) and condenser. b. Calculate the distillate temperature (K). [5 marks] [10 marks] c. An air cooler is proposed to be used as the condenser. Can you please assess the suitability for this operation? [5 marks] d. Estimate the temperature of the column first tray (uppermost tray) (K). Assume that the pressure is 3.07 bara. [20 marks] e. Determine the vapor composition leaving the second tray (second uppermost tray) and state reasonable assumption(s) for your calculation. [10 marks]