Question
plz find the answer qustion2 part 1,2,3,4,5 and 6
For a mixture of Acetone in Water Calculate the vapour pressures of each component over this mixture over the range between their boiling points. 1) 5 Marks] 2) Calculate the liquid and vapour compositions of acetone and plot the x-yand T-x-y diagra 6 Marks] 3) Calculate the relative volatility at each temperature condition and comment on the values for [4 Marks] 4) A bottom composition of 10 mol % Acetone and a top composition of 90 mois acetone is desired. Using the Fenske-underwood equation, determine the number of minimum ideal 5 Marks 5) If a Feed stream containing 60 mol% Acetone enters the column at its boiling point. Calculate is system and the significance of relative volatility for the prediction of separation plates required for this separation the minimum reflux ratio for the operation using the Underwood equation. [5 Marks] Total 25 Marks ermodynamic Dat Table 2: Antoine equation constants taken from R. Felder, R. Rousseau, Elementary Principles of Chemical Processes, 2nd ed 1161.00 1668.21 224.0 228.0 Acetone 7.02447 Water (above 60 C Antoine equation log P. = A T+ C Where: P. vapour pressure in mmHg T= Temperature in °C
Explanation / Answer
Using the Antoins equation, calculate the vapor pressures.
boiling point of acetone = 56 °C ; boiling point of water = 100 °C
T (
°C) 56 60 65 70 75 80 85 90 95 100 Pacetone 2.878041 2.936442 3.007169 3.07549 3.141527 3.205391 3.267188 3.327018 3.384972 3.441137 Pwater 0.650099 0.650099 0.650099 0.650099 0.650099 0.650099 0.650099 0.650099 0.650099 0.650099
