Chemistry A-Level
enthalpy of hydration
What enthalpy of hydration means in Chemistry A-Level, as defined for AQA.
Definition of enthalpy of hydration
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Reference: AQA
The enthalpy released when each gaseous ion is surrounded by water molecules attracted to its charge, which is negative and larger in magnitude for small, highly charged ions.
Topics that use enthalpy of hydration
- Born–Haber cycles (A-level only) (AQA A-Level)
Related terms
- Born–Haber cycle
- Covalent character
- Electron affinity
- enthalpy of formation
- enthalpy of solution
- lattice dissociation enthalpy
- Lattice enthalpy
- lattice formation enthalpy
Using enthalpy of hydration in the exam
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