For a mixture comprised of 0.80 mol% of tokens and 0.20 mol % of cyclohexane. Boiling point of toluene: Boiling point of cyclohexane At what temp will mix begin to boil...
For a mixture comprised of 0.80 mol% of tokens and 0.20 mol % of cyclohexane. Boiling point of toluene: Boiling point of cyclohexane At what temp will mix begin to boil...
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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Transcribed Image Text:For a mixture comprised of 0.80 mol % of toluene and 0.20 mol % of cyclohexane.
- Boiling point of toluene:
- Boiling point of cyclohexane:
- At what temperature will the mixture begin to boil...
Transcribed Image Text:The image shows a phase diagram for a binary mixture of Cyclohexane and Toluene. The x-axis represents the mole percentage of Toluene, ranging from 0 to 100, and also indicates the mole percentage of Cyclohexane from 100 to 0. The y-axis denotes temperature in degrees Celsius (°C), ranging from 73°C to 115°C.
The graph consists of two curves that outline the phase boundaries of the mixture:
1. **Upper Curve (Vapor Line)**: This curve represents the temperatures at which the mixture transitions from liquid to vapor.
2. **Lower Curve (Liquid Line)**: This curve indicates the temperatures at which vapor begins to condense into liquid.
- The area between these two curves represents the mixture's two-phase region, where both liquid and vapor coexist.
- The region above the upper curve signifies the vapor phase, while the region below the lower curve indicates the liquid phase.
Dashed lines are drawn perpendicular from the x-axis to the curves, illustrating how a particular composition transitions from liquid to vapor with temperature changes. The labels "Vapor" and "Liquid" indicate the phases within the delineated areas.
Expert Solution
Step 1
A boiling point of a substance or a mixture can be defined as the temperature at which the vapor pressure of mixture is equal to the atmospheric pressure. It is the temperature at which the liquid phase mixture is in equilibrium with the vapor phase.
In the case of the pure compound, the vapor pressure of the compound and its partial pressure is same. But in the case of a mixture, the total vapor pressure of the mixture is the sum of the partial pressure of the each component in the mixture.
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