Deviations from Raoult’s law lead to the formation of azeotropes, constant boiling mixtures that cannot be separated by distillation, making industrial separations difficult. For components A and B, there is a positive deviation if the A-B attraction is less than A-A and B-B attractions (A and B reject each other), and a negative deviation if the A-B attraction is greater than A-A and B-B attractions. If the A-B attraction is nearly equal to the A-A and B-B attractions, the solution obeys Raoult’s law. Explain whether the behavior of each pair will be nearly ideal, have a positive deviation, or a negative deviation: (a) Benzene (C6H6) and methanol(b) Water and ethyl acetate (c) Hexane and heptane(d) Methanol and water(e) Water and hydrochloric acid
Deviations from Raoult’s law lead to the formation of azeotropes, constant boiling mixtures that cannot be separated by distillation, making industrial separations difficult. For components A and B, there is a positive deviation if the A-B attraction is less than A-A and B-B attractions (A and B reject each other), and a negative deviation if the A-B attraction is greater than A-A and B-B attractions. If the A-B attraction is nearly equal to the A-A and B-B attractions, the solution obeys Raoult’s law. Explain whether the behavior of each pair will be nearly ideal, have a positive deviation, or a negative deviation: (a) Benzene (C6H6) and methanol(b) Water and ethyl acetate (c) Hexane and heptane(d) Methanol and water(e) Water and hydrochloric acid
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Deviations from Raoult’s law lead to the formation of
azeotropes, constant boiling mixtures that cannot be separated by
distillation, making industrial separations difficult. For components A and B, there is a positive deviation if the A-B attraction
is less than A-A and B-B attractions (A and B reject each other),
and a negative deviation if the A-B attraction is greater than A-A
and B-B attractions. If the A-B attraction is nearly equal to the
A-A and B-B attractions, the solution obeys Raoult’s law. Explain
whether the behavior of each pair will be nearly ideal, have a positive deviation, or a negative deviation:
(a) Benzene (C6H6) and methanol
(b) Water and ethyl acetate
(c) Hexane and heptane
(d) Methanol and water
(e) Water and hydrochloric acid
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