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Imagine a solution of two liquids in which the molecules interact more favorably than they do in the individual liquids. Will this solution deviate positively from, deviate negatively from, or ideally follow Raoult's law? View Available Hint/s)

Imagine a solution of two liquids in which the molecules interact more favorably than they do in the individual liquids. Will this solution deviate positively from, deviate negatively from, or ideally follow Raoult's law? View Available Hint/s)

Chemistry
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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Learning Goal: To understand deviations from the ideal vapor pressure for solutions of two liquids. Part B Raoult's law is used to predict the vapor pressure of an ideal solution that contains one or more volatile components. For a solution with only one component Imagine a solution of two liquids in which the molecules interact more favorably than they do in the individual liquids. Will this solution deviate positively from, deviate negatively from, or ideally follow Raoult's law? • View Available Hint(s) Peoln = Poly X Xgolv O Itwill deviate positively. where Poln is the vapor pressure of gaseous solvent above the solution, Psoly is the vapor O twill deviate negatively. pressure of the pure solvent, and Xoly is the mole fraction of the solvent. O It will be an ideal solution. An assumption of Raoult's law is that the interactions between the different components of the solution are similar in magnitude to the interactions of each of the components with themselves; in other words, the components form an ideal solution. Deviations from this law are observed when interactions between solute and solvent are not similar. Submit Part C Imagine a solution of two liquids that are so similar that their interactions together are the same as in the individual liquids, Will this solution deviate positively from, deviate negatively from, or ideally follow Raoult's law? O It will deviate positively. O It will deviate negatively. O It will be an ideal solution.
Transcribed Image Text:Learning Goal: To understand deviations from the ideal vapor pressure for solutions of two liquids. Part B Raoult's law is used to predict the vapor pressure of an ideal solution that contains one or more volatile components. For a solution with only one component Imagine a solution of two liquids in which the molecules interact more favorably than they do in the individual liquids. Will this solution deviate positively from, deviate negatively from, or ideally follow Raoult's law? • View Available Hint(s) Peoln = Poly X Xgolv O Itwill deviate positively. where Poln is the vapor pressure of gaseous solvent above the solution, Psoly is the vapor O twill deviate negatively. pressure of the pure solvent, and Xoly is the mole fraction of the solvent. O It will be an ideal solution. An assumption of Raoult's law is that the interactions between the different components of the solution are similar in magnitude to the interactions of each of the components with themselves; in other words, the components form an ideal solution. Deviations from this law are observed when interactions between solute and solvent are not similar. Submit Part C Imagine a solution of two liquids that are so similar that their interactions together are the same as in the individual liquids, Will this solution deviate positively from, deviate negatively from, or ideally follow Raoult's law? O It will deviate positively. O It will deviate negatively. O It will be an ideal solution.
Expert Solution
Step 1

Raoult’s law: The vapor pressure of the solution is equal to the mole fraction and vapor pressure of the solvent at that temperature.

Fundamentals

According to Raoult’s law,

Cohesive force:

A force of attraction between like molecules

Adhesive force:

A force of attraction between unlike molecules

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