chem: Change lattice enthalpy definition to match Born-Haber cycles

It also follows Wikipedia and most other sources now.
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eggy 2021-10-17 21:02:58 -04:00
parent 741883c491
commit e2e8eb0054

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@ -167,7 +167,7 @@ Second ionisation energy may increase the peak enthalpy after it has lowered fro
### Lattice enthalpy
The lattice enthalpy of an ionic compound is the **magnitude** of the energy released when 1 mol of an ionic solid is formed from gaseous ions.
The lattice enthalpy of an ionic compound is the energy required to dissociate 1 mol of an ionic solid to its gaseous ions.
- It decreases as ionic radius increases due to greater distance and charge separation
- It increases as difference in charge increases because the greater charges are more strongly attracted