Questions 1- Concentration of the feed 2- Temperature of the chiller 3- How do you determine concentration of Ethanol and Methanol in the ADV FIXTURE. 4- Draw the apparatus and give

as much detail as you can. 5- How do you measure the concentration of the samples 6- Something about Fenske equation (make sure you know all the steps on how to calculate the number of stages) 7- VLE stand for 8- How to calculate average volatility? 9- What is the actual number of trays in the distillation in 1954 and ADV?