Based on Chapter 3. Introduction to Column Distillation, respond to the following questions A1. Explain how a distillation column works. (5 points) A2. Define the following topics/items: (10 points, 2 points each) a. Isothermal distillation b. The four flow regimes in a staged distillation column c. Reflux and reflux ratio d. Boilup and boilup ratio e. Rectifying (enriching) and stripping sections A3. Explain the reasons a constant pressure distillation column is preferable to: a. An isothermal distillation system. (5 points) b. A cascade of flash separators at constant temperature. (5 points) c. A cascade of flash separators at constant pressure. (5 points) A4. Develop your own key relations chart for this chapter. In one page or less draw sketches, write equations, and include all key words you would want for solving problems. (20 points) Based on Chapter 3. Introduction to Column Distillation, respond to the following questions A1. Explain how a distillation column works. (5 points) A2. Define the following topics/items: (10 points, 2 points each) a. Isothermal distillation b. The four flow regimes in a staged distillation column c. Reflux and reflux ratio d. Boilup and boilup ratio e. Rectifying (enriching) and stripping sections A3. Explain the reasons a constant pressure distillation column is preferable to: a. An isothermal distillation system. (5 points) b. A cascade of flash separators at constant temperature. (5 points) c. A cascade of flash separators at constant pressure. (5 points) A4. Develop your own key relations chart for this chapter. In one page or less draw sketches, write equations, and include all key words you would want for solving problems. (20 points)