Editing Raoult's law

'''Raoult's law''' states that the  [[vapour pressure]] of an [[ideal solution]] of two components is:
:<math>P_v = X_A P^*_{v,A} + X_B P^*_{v,B}</math>
where <math>X_i</math> is the [[molar fraction]] of component <math>i</math>, and <math>P^*_{v,i}</math> is the vapour pressure of pure <math>i</math>.
More generally, Raoult's law describes the [[partial pressure]] of  component <math>A</math> in the vapour coexisting with a liquid mixture as:

:<math>  P_A = X_A P^*_{v,A} </math>.

This law is obeyed for all components of an ideal solution, and is also obeyed for the solvent of an [[ideal dilute solution]]. The solute's partial pressure of such solutions then obey [[ Henry's law]]. Ideal dilute solutions describe the limiting behaviour of a mixture of infinite dilution. Therefore, all solutions in the limit of infinite dilution obey Raoult's law, i.e.:

:<math> \lim_{X_A \rightarrow 1} P_A = X_A P^*_{v,A} </math>.
==References==

[[category: classical thermodynamics]]