Henry's LawSolutions
For a binary solution of volatile liquids, if the solute obeys Henry's Law ( ) over a certain range, what law must the solvent obey over the same range?
Expert Answer
The solvent must obey Raoult's Law ( ). This is a consequence of the Gibbs-Duhem equation. In an ideal dilute solution, if the solute follows Henry's law, the solvent necessarily approaches ideal behavior (Raoult's law).