enthalpy of formation
What enthalpy of formation means in Chemistry A-Level, as defined for AQA, OCR.
Definitions of enthalpy of formation
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Reference: OCR
One of the relevant energy terms, alongside atomisation, bond dissociation, ionisation and electron affinity, used with the lattice enthalpy of a simple ionic solid.
One path of the cycle, from the elements in their standard states down to the compound.
Topics that use enthalpy of formation
- Born–Haber cycles (A-level only) (AQA A-Level)
- Lattice enthalpy (OCR A-Level)
Related terms
- Born–Haber cycle
- Electron affinity
- lattice dissociation enthalpy
- Lattice enthalpy
- Covalent character
- Effect of ionic charge and radius on lattice enthalpy
- Enthalpy change of hydration
- Enthalpy change of solution
Using enthalpy of formation in the exam
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