For ten points, name this law stating that the partial pressure of a component in a liquid mixture is proportional to its mole fraction.
If it were always true, fractional distillation would never work since all mixtures would be azeotropes. Instead, it usually only holds for dilute solutions of nonelectrolytes where the partial pressures are not too large.  For ten points, name this law stating that the partial pressure of a component in a liquid mixture is proportional to its mole fraction.
If it were always true, fractional distillation would never work since all mixtures would be azeotropes.
Raoult's law