File:Raoultov_zakon.png · Wikimedia Commons · See Wikimedia Commons
~14 min read
Encyclopedic overview
Raoult's law (/ˈrɑːuːlz/ law) is a relation of physical chemistry, with implications in thermodynamics. Proposed by French chemist François-Marie Raoult in 1887, it states that the partial pressure of each component of an ideal mixture of liquids is equal to the vapor pressure of the pure component (liquid or solid) multiplied by its mole fraction in the mixture. In consequence, the relative lowering of vapor pressure of a dilute solution of nonvolatile solute is equal to the mole fraction of solute in the solution.
Mathematically, Raoult's law for a single component in an ideal solution is stated as
Excerpted from Wikipedia’s “Raoult's law” article, available under the CC BY-SA 4.0 licence.