Excess Gibbs Free Energy using Van Laar Equation Calculator

✖Temperature is the degree or intensity of heat present in a substance or object.ⓘ Temperature [T_{activity coefficent}]			+10% -10%
✖The mole fraction of component 1 in liquid phase can be defined as the ratio of the number of moles a component 1 to the total number of moles of components present in the liquid phase.ⓘ Mole Fraction of Component 1 in Liquid Phase [x₁]			+10% -10%
✖The mole fraction of component 2 in liquid phase can be defined as the ratio of the number of moles a component 2 to the total number of moles of components present in the liquid phase.ⓘ Mole Fraction of Component 2 in Liquid Phase [x₂]			+10% -10%
✖The Van Laar equation coefficient (A'12) is the coefficient used in the van Laar equation for component 1 in the binary system.ⓘ Van Laar Equation Coefficient (A'12) [A'₁₂]			+10% -10%
✖The Van Laar Equation Coefficient (A'21) is the coefficient used in the van Laar equation for component 2 in the binary system.ⓘ Van Laar Equation Coefficient (A'21) [A'₂₁]			+10% -10%

✖Excess Gibbs Free Energy is the Gibbs energy of a solution in excess of what it would be if it were ideal.ⓘ Excess Gibbs Free Energy using Van Laar Equation [G^E]

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Excess Gibbs Free Energy using Van Laar Equation Solution

STEP 0: Pre-Calculation Summary

Formula Used

Excess Gibbs Free Energy = ([R]*Temperature*Mole Fraction of Component 1 in Liquid Phase*Mole Fraction of Component 2 in Liquid Phase)*((Van Laar Equation Coefficient (A'12)*Van Laar Equation Coefficient (A'21))/(Van Laar Equation Coefficient (A'12)*Mole Fraction of Component 1 in Liquid Phase+Van Laar Equation Coefficient (A'21)*Mole Fraction of Component 2 in Liquid Phase))
G^E = ([R]*T_{activity coefficent}*x₁*x₂)*((A'₁₂*A'₂₁)/(A'₁₂*x₁+A'₂₁*x₂))
This formula uses 1 Constants, 6 Variables

Constants Used

[R] - Universal gas constant Value Taken As 8.31446261815324

Variables Used

Excess Gibbs Free Energy - (Measured in Joule) - Excess Gibbs Free Energy is the Gibbs energy of a solution in excess of what it would be if it were ideal.
Temperature - (Measured in Kelvin) - Temperature is the degree or intensity of heat present in a substance or object.
Mole Fraction of Component 1 in Liquid Phase - The mole fraction of component 1 in liquid phase can be defined as the ratio of the number of moles a component 1 to the total number of moles of components present in the liquid phase.
Mole Fraction of Component 2 in Liquid Phase - The mole fraction of component 2 in liquid phase can be defined as the ratio of the number of moles a component 2 to the total number of moles of components present in the liquid phase.
Van Laar Equation Coefficient (A'12) - The Van Laar equation coefficient (A'12) is the coefficient used in the van Laar equation for component 1 in the binary system.
Van Laar Equation Coefficient (A'21) - The Van Laar Equation Coefficient (A'21) is the coefficient used in the van Laar equation for component 2 in the binary system.

STEP 1: Convert Input(s) to Base Unit

Temperature: 650 Kelvin --> 650 Kelvin No Conversion Required
Mole Fraction of Component 1 in Liquid Phase: 0.4 --> No Conversion Required
Mole Fraction of Component 2 in Liquid Phase: 0.6 --> No Conversion Required
Van Laar Equation Coefficient (A'12): 0.55 --> No Conversion Required
Van Laar Equation Coefficient (A'21): 0.59 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

G^E = ([R]*T_{activity coefficent}*x₁*x₂)*((A'₁₂*A'₂₁)/(A'₁₂*x₁+A'₂₁*x₂)) --> ([R]*650*0.4*0.6)*((0.55*0.59)/(0.55*0.4+0.59*0.6))

Evaluating ... ...

G^E = 733.266074313856

STEP 3: Convert Result to Output's Unit

733.266074313856 Joule --> No Conversion Required

FINAL ANSWER

733.266074313856 ≈ 733.2661 Joule <-- Excess Gibbs Free Energy

(Calculation completed in 00.004 seconds)

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Created by Shivam Sinha

National Institute Of Technology (NIT), Surathkal

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< Correlations for Liquid Phase Activity Coefficients Calculators

Excess Gibbs Free Energy using Margules Two-Parameter Equation

LaTeX Go Excess Gibbs Free Energy = ([R]*Temperature*Mole Fraction of Component 1 in Liquid Phase*Mole Fraction of Component 2 in Liquid Phase)*(Margules Two Parameter Equation Coefficient (A21)*Mole Fraction of Component 1 in Liquid Phase+Margules Two Parameter Equation Coefficient (A12)*Mole Fraction of Component 2 in Liquid Phase)

Activity Coefficient of Component 1 using Margules Two-Parameter Equation

LaTeX Go Activity Coefficient of Component 1 = exp((Mole Fraction of Component 2 in Liquid Phase^2)*(Margules Two Parameter Equation Coefficient (A12)+2*(Margules Two Parameter Equation Coefficient (A21)-Margules Two Parameter Equation Coefficient (A12))*Mole Fraction of Component 1 in Liquid Phase))

Activity Coefficient of Component 1 using Margules One Parameter Equation

LaTeX Go Activity Coefficient of Component 1 = exp(Margules One Parameter Equation Coefficient*(Mole Fraction of Component 2 in Liquid Phase^2))

Activity Coefficient of Component 2 using Margules One Parameter Equation

LaTeX Go Activity Coefficient of Component 2 = exp(Margules One Parameter Equation Coefficient*(Mole Fraction of Component 1 in Liquid Phase^2))

< Correlations for Liquid Phase Activity Coefficients Calculators

Activity Coefficient of Component 1 using Margules Two-Parameter Equation

Activity Coefficient of Component 1 using Van Laar Equation

LaTeX Go Activity Coefficient of Component 1 = exp(Van Laar Equation Coefficient (A'12)*((1+((Van Laar Equation Coefficient (A'12)*Mole Fraction of Component 1 in Liquid Phase)/(Van Laar Equation Coefficient (A'21)*Mole Fraction of Component 2 in Liquid Phase)))^(-2)))

Activity Coefficient of Component 1 using Margules One Parameter Equation

LaTeX Go Activity Coefficient of Component 1 = exp(Margules One Parameter Equation Coefficient*(Mole Fraction of Component 2 in Liquid Phase^2))

Activity Coefficient of Component 2 using Margules One Parameter Equation

LaTeX Go Activity Coefficient of Component 2 = exp(Margules One Parameter Equation Coefficient*(Mole Fraction of Component 1 in Liquid Phase^2))

Excess Gibbs Free Energy using Van Laar Equation Formula

LaTeX Go

Give Information on Van Laar Equation Model.

The van Laar equation is a thermodynamic activity model, which was developed by Johannes van Laar in 1910-1913, to describe phase equilibria of liquid mixtures. The equation was derived from the Van der Waals equation. The original van der Waals parameters didn't give good description of vapor-liquid equilibria of phases, which forced the user to fit the parameters to experimental results. Because of this, the model lost the connection to molecular properties, and therefore it has to be regarded as an empirical model to correlate experimental results.

What is Gibbs Free Energy?

The Gibbs free energy (or Gibbs energy) is a thermodynamic potential that can be used to calculate the maximum reversible work that may be performed by a thermodynamic system at a constant temperature and pressure. The Gibbs free energy measured in joules in SI) is the maximum amount of non-expansion work that can be extracted from a thermodynamically closed system (can exchange heat and work with its surroundings, but not matter). This maximum can be attained only in a completely reversible process. When a system transforms reversibly from an initial state to a final state, the decrease in Gibbs free energy equals the work done by the system to its surroundings, minus the work of the pressure forces.

How to Calculate Excess Gibbs Free Energy using Van Laar Equation?

Excess Gibbs Free Energy using Van Laar Equation calculator uses Excess Gibbs Free Energy = ([R]*Temperature*Mole Fraction of Component 1 in Liquid Phase*Mole Fraction of Component 2 in Liquid Phase)*((Van Laar Equation Coefficient (A'12)*Van Laar Equation Coefficient (A'21))/(Van Laar Equation Coefficient (A'12)*Mole Fraction of Component 1 in Liquid Phase+Van Laar Equation Coefficient (A'21)*Mole Fraction of Component 2 in Liquid Phase)) to calculate the Excess Gibbs Free Energy, The Excess Gibbs Free Energy using Van Laar Equation formula is defined as the function of van Laar coefficients A'12 and A'21, temperature and the mole fraction of both the components 1 and 2. Excess Gibbs Free Energy is denoted by G^E symbol.

How to calculate Excess Gibbs Free Energy using Van Laar Equation using this online calculator? To use this online calculator for Excess Gibbs Free Energy using Van Laar Equation, enter Temperature (T_{activity coefficent}), Mole Fraction of Component 1 in Liquid Phase (x₁), Mole Fraction of Component 2 in Liquid Phase (x₂), Van Laar Equation Coefficient (A'12) (A'₁₂) & Van Laar Equation Coefficient (A'21) (A'₂₁) and hit the calculate button. Here is how the Excess Gibbs Free Energy using Van Laar Equation calculation can be explained with given input values -> 733.2661 = ([R]*650*0.4*0.6)*((0.55*0.59)/(0.55*0.4+0.59*0.6)).

FAQ

What is Excess Gibbs Free Energy using Van Laar Equation?

The Excess Gibbs Free Energy using Van Laar Equation formula is defined as the function of van Laar coefficients A'12 and A'21, temperature and the mole fraction of both the components 1 and 2 and is represented as G^E = ([R]*T_{activity coefficent}*x₁*x₂)*((A'₁₂*A'₂₁)/(A'₁₂*x₁+A'₂₁*x₂)) or Excess Gibbs Free Energy = ([R]*Temperature*Mole Fraction of Component 1 in Liquid Phase*Mole Fraction of Component 2 in Liquid Phase)*((Van Laar Equation Coefficient (A'12)*Van Laar Equation Coefficient (A'21))/(Van Laar Equation Coefficient (A'12)*Mole Fraction of Component 1 in Liquid Phase+Van Laar Equation Coefficient (A'21)*Mole Fraction of Component 2 in Liquid Phase)). Temperature is the degree or intensity of heat present in a substance or object, The mole fraction of component 1 in liquid phase can be defined as the ratio of the number of moles a component 1 to the total number of moles of components present in the liquid phase, The mole fraction of component 2 in liquid phase can be defined as the ratio of the number of moles a component 2 to the total number of moles of components present in the liquid phase, The Van Laar equation coefficient (A'12) is the coefficient used in the van Laar equation for component 1 in the binary system & The Van Laar Equation Coefficient (A'21) is the coefficient used in the van Laar equation for component 2 in the binary system.

How to calculate Excess Gibbs Free Energy using Van Laar Equation?

The Excess Gibbs Free Energy using Van Laar Equation formula is defined as the function of van Laar coefficients A'12 and A'21, temperature and the mole fraction of both the components 1 and 2 is calculated using Excess Gibbs Free Energy = ([R]*Temperature*Mole Fraction of Component 1 in Liquid Phase*Mole Fraction of Component 2 in Liquid Phase)*((Van Laar Equation Coefficient (A'12)*Van Laar Equation Coefficient (A'21))/(Van Laar Equation Coefficient (A'12)*Mole Fraction of Component 1 in Liquid Phase+Van Laar Equation Coefficient (A'21)*Mole Fraction of Component 2 in Liquid Phase)). To calculate Excess Gibbs Free Energy using Van Laar Equation, you need Temperature (T_{activity coefficent}), Mole Fraction of Component 1 in Liquid Phase (x₁), Mole Fraction of Component 2 in Liquid Phase (x₂), Van Laar Equation Coefficient (A'12) (A'₁₂) & Van Laar Equation Coefficient (A'21) (A'₂₁). With our tool, you need to enter the respective value for Temperature, Mole Fraction of Component 1 in Liquid Phase, Mole Fraction of Component 2 in Liquid Phase, Van Laar Equation Coefficient (A'12) & Van Laar Equation Coefficient (A'21) and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Excess Gibbs Free Energy?

In this formula, Excess Gibbs Free Energy uses Temperature, Mole Fraction of Component 1 in Liquid Phase, Mole Fraction of Component 2 in Liquid Phase, Van Laar Equation Coefficient (A'12) & Van Laar Equation Coefficient (A'21). We can use 2 other way(s) to calculate the same, which is/are as follows -

Excess Gibbs Free Energy = ([R]*Temperature*Mole Fraction of Component 1 in Liquid Phase*Mole Fraction of Component 2 in Liquid Phase)*(Margules Two Parameter Equation Coefficient (A21)*Mole Fraction of Component 1 in Liquid Phase+Margules Two Parameter Equation Coefficient (A12)*Mole Fraction of Component 2 in Liquid Phase)
Excess Gibbs Free Energy = ([R]*Temperature*Mole Fraction of Component 1 in Liquid Phase*Mole Fraction of Component 2 in Liquid Phase)*(Margules Two Parameter Equation Coefficient (A21)*Mole Fraction of Component 1 in Liquid Phase+Margules Two Parameter Equation Coefficient (A12)*Mole Fraction of Component 2 in Liquid Phase)

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