Question
OS ration 1.5 hours 1. A Iguld mature containing 50 mor% acetone, 50 mol% water is to be flash-vaporized under equiliavium condlitions at 1 std atm., such that 40 molts of the feed is vaporized. a What wi the composition of the product in the separator be? j what will the temperature of the liquid in the separator be? cd What is the composition of th e vapour which is condensed totally? stream arrives at the site of the separator at 26.7°C, what needs to be done to it er mixtures at atmospheric pressure ls plotted in the in mixtures is shown graphically on the prior to fl ash vaporization? The equillibrium xy data for Aceto ehe attached sheet. The bubble point curve for acetone-wate attached sheet. [20 marks] liquid mixture containing 65% C7 and 45% CS at 30°C is subjected to differential pressure. The distillation is stopped when the mole fraction of the more A 100mole volatile component in the flask reaches 0.30. Determine, as accurately as you can, a) the total amount of distillate collected and b) its concentration, (25 marks) Equilibrium Data for the C7 and the C8 @30°C and atmospheric pressure. .900 0.800 0.655 | 0.510 | 0.487 | 0.312 | 0.284 0.157 | 0.097 0.039 0.012 /r·, a945 0.895 0.810 0.698 0.674 0.492 0459 0.279 0.184 0.078 0.025 0 1 0.945|0.895 | 0.810 3. Describe in your own words what measures you would put in place to ensure that the differen distllation method described in question 2 can be considered a succession of equilibrium stages succession in time) even though the contents of the vessel change with time. [5 marks]
Explanation / Answer
OS ration 1.5 hours 1. A Iguld mature containing 50 mor% acetone, 50 mol% water
