Back انثالبي الذوبان Arabic Entalpia de dissolució Catalan گەرمیی گیراوە CKB Lösungsenthalpie German Entalpía de disolución Spanish آنتالپی انحلال Persian Enthalpie de solution French Perubahan entalpi larutan ID Entalpia di soluzione Italian 용해열 Korean
In thermochemistry, the enthalpy of solution (heat of solution or enthalpy of solvation) is the enthalpy change associated with the dissolution of a substance in a solvent at constant pressure resulting in infinite dilution.
The enthalpy of solution is most often expressed in kJ/mol at constant temperature. The energy change can be regarded as being made up of three parts: the endothermic breaking of bonds within the solute and within the solvent, and the formation of attractions between the solute and the solvent. An ideal solution has a null enthalpy of mixing. For a non-ideal solution, it is an excess molar quantity.