Pxy [P-x-y] diagrams are derived from this equation.
A restatement of this equation sets the change of Gibbs free energy to nRT times the sum of each component's concentration times the log of its concentration. Pxy [P-x-y] diagrams are derived from this equation. This equation is used to find the bubble point and the dew point. Positive deviations from it occur in chloroform and ethanol, or other solutions with strong cohesive forces. This law fails to predict azeotropes. It can only be used at high concentration, or for mixtures of similar compounds like benzene and toluene. For 10 points, name this law which states that the partial pressure of a gas equals its mass fraction in the liquid phase times the vapor pressure, named for a Frenchman.
A restatement of this equation sets the change of Gibbs free energy to nRT times the sum of each component's concentration times the log of its concentration.
Raoult's Law