Answer the following questions pertaining to the phase diagram of a binary mixtu

Question

Answer the following questions pertaining to the phase diagram of a binary mixture of liquids A and B. Assume that both the liquids obey ideal behavior and follow Raoult's law.

A) What is the boiling point of the component A?

B) What is the mol % of both the components A and B in the
first drop of the distillate when a binary mixture with 0.70 mole fraction is boiled? (make accurate measurements on the diagram)

C) When the distillate formed in question (B) is subjected to a second distillation, what would be the composition of A and B in mol % in the new distillate formed? (make accurate measurements on the diagram)

Explanation / Answer

A. when xa=1 t =boiling temperation of A

here x = 1 at 115 degrees

B. at 0.7 mole fraction, when distilled for the first time draw a vertical line it meets the lowed curve at t= 100. now draw a horizontal line at that temperature. It meets the upper curve at x = 0.4.

mol % of A= 40 => mol % of B = 60

C. at x = 0.4 draw a vertical line it meets the lower curve at 87.5 approx degrees C. Now draw a horizontal line at this temperature it meets the upper curve at x=0.15 approx(Note: The image provided is little bit slant...unable to figure out the exact values...please follow this process for any number of distillations)

mol % of A = 15% and mol% of B = 75 %

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.