Explain Vapour Liquid Equilibrium (VLE).
An activity coefficient is a factor used in thermodynamics to account for deviations from ideal behaviour in a mixture of chemical substances. In an ideal mixture, the microscopic interactions between each pair of chemical species are the same (or macroscopically equivalent, the enthalpy change of solution and volume variation in mixing is zero) and, as a result, properties of the mixtures can be expressed directly in terms of simple concentrations or partial pressures of the substances present e.g. Raoult's law. Deviations from ideality are accommodated by modifying the concentration by an activity coefficient. Analogously, expressions involving gases can be adjusted for non-ideality by scaling partial pressures by a fugacity coefficient.
How to Calculate Total Pressure using Modified Raoult's Law in VLE?
Total Pressure using Modified Raoult's Law in VLE calculator uses Total Pressure of Gas = (Mole Fraction of Component in Liquid Phase*Activity Coefficient in Raoults Law*Saturated pressure)/Mole Fraction of Component in Vapor Phase to calculate the Total Pressure of Gas, The Total Pressure using Modified Raoult's Law in VLE formula is defined as the ratio of the product of the liquid phase mole fraction, activity coefficient and the saturated pressure to the vapour phase mole fraction of mixture or solution. Total Pressure of Gas is denoted by PT symbol.
How to calculate Total Pressure using Modified Raoult's Law in VLE using this online calculator? To use this online calculator for Total Pressure using Modified Raoult's Law in VLE, enter Mole Fraction of Component in Liquid Phase (xLiquid), Activity Coefficient in Raoults Law (γRaoults), Saturated pressure (Psat ) & Mole Fraction of Component in Vapor Phase (yGas) and hit the calculate button. Here is how the Total Pressure using Modified Raoult's Law in VLE calculation can be explained with given input values -> 76500 = (0.51*0.9*50000)/0.3.