It only applies at high concentrations, or for compounds like pentane and hexane, which form ideal solutions.
The Rachford-Rice equation is used with this equation to do flash calculations. An application of this law to Beckmann's thermometer allowed him to calculate molecular weights. Though it can be modified by Margules functions, in its general form, this equation gives the K-value as the ratio of two pressures. The straight line on a P-x-y diagram is a consequence of this law. The modified form of it multiplies one side by the activity coefficient and the other side by a fugacity coefficient. This law is used to calculate dew points and bubble points. It only applies at high concentrations, or for compounds like pentane and hexane, which form ideal solutions. For 10 points, name this law which sets a gas' partial pressure equal to its mole fraction in the liquid phase times the vapor pressure.
The Rachford-Rice equation is used with this equation to do flash calculations.
Raoult's Law