Interpretation:
Estimate the system pressure and vapor phase mole fraction.
Concept Introduction:
The expression of excess molar Gibbs free energy 1-parameter Margules equation is,
Here, excess molar Gibbs free energy is
The expression of the vapor pressure using Antoine equation is,
Here, temperature in degree Celsius is
Write the expression of activity coefficients for component 1.
Here, vapor phase and liquid phase mole fraction for component 1 is
The expression of activity coefficients for component 2 is,
Here, vapor phase and liquid phase mole fraction for component 2 is
The partial molar properties for experimental data is,
The activity coefficients at the desired composition from the model are,
The expression to obtain the system pressure using the Modified Raoult’s Law is,
The expression of vapor phase mole composition for component 1 is,
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