Energy/Enthalpy of hydration
Energy/Enthalpy of hydration
This refers to the enthalpy change when 1mole of gaseous ions is hydrated. e.g.
Na+(g) + aq → Na+(aq) ∆HmӨ(298K) = -406 kJmol-1
Factors affecting the magnitude of lattice energy
- Size of the ion: small ions have strong attraction to water molecules leading to high hydration energy.
- Charge on the ions: ions with high big charge have a strong attraction to water molecules leading to high enthalpy of hydration.
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