Question
Consider an equimolar mixture of acetone and methyl isobutyl ketone (MIBK). Acetone is the more volatile component. a. ( 15 points ) Generate a Txy
Consider an equimolar mixture of acetone and methyl isobutyl ketone (MIBK). Acetone is the
more volatile component.
a. (15 points) Generate a Txy diagram for the acetone/MIBK mixture at 1 atm using Excels
Solver function. Use Table B.4 in Felder, Rousseau & Bullard to calculate the values of the
vapor pressures of both components using Antoines equation. Plot the dew point and the
bubble point curves in a single plot.
b. (5 points) Use the 4th order polynomial equation of the Trendline to fit the data and establish
the equations describing the dependence of the dew point (Tdp) and bubble point (Tbp) temperatures
on the mixture composition. Display the equations on the chart.
c. (5 points) Use Solver to solve the equations obtained in part b) and find the mole fractions of
acetone in the liquid and vapor phases at T=85C.
d. (10 points) Calculate the molar ratio of the liquid phase to the vapor phase (i.e., n(l)/n(v)) at
T=85C. You can use the level rule or normal balance equations.
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