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.
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 GE 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 (Tactivity 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)).