
Interpretation:
The values of
Concept introduction:
According to Raoult’s law, the vapor pressure of the solution is equal to the product of vapor pressure of the solvent and its mole fraction in the solution. The ideal solution follows the Raoult’s law.

Answer to Problem 7.30E
The values of
Explanation of Solution
The
The conversion of temperature in Celsius to Kelvin is given by the formula,
Substitute the value of
Thus, the temperature of the ideal solution is
The molar mass of pentane is calculated as,
Thus, the molar mass of pentane is
The molar mass of hexane is calculated as,
Thus, the molar mass of hexane is
The molar mass of cyclohexane is calculated as,
Thus, the molar mass of cyclohexane is
The number of moles is calculated by the formula,
Substitute the given mass and molar mass of pentane in above formula.
Thus, the moles of pentane is
Substitute the given mass and molar mass of hexane in above formula.
Thus, the moles of hexane is
Substitute the given mass and molar mass of cyclohexane in above formula.
Thus, the moles of cyclohexane is
Hence, the total number of moles is
The mole fraction is calculated by the formula,
Where,
•
•
•
•
Substitute the moles of pentane in above formula.
Thus, the mole fraction of pentane is
Substitute the moles of hexane in above formula.
Thus, the mole fraction of hexane is
Substitute the moles of cyclohexane in above formula.
Thus, the mole fraction of cyclohexane is
The formula used to calculate
Where,
•
•
•
Substitute the value of
Therefore, the
The formula used to calculate
Where,
•
•
Substitute the value of
Therefore, the
The values of
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Chapter 7 Solutions
Physical Chemistry
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