Chemistry A-Level
Standard enthalpy of formation
What Standard enthalpy of formation means in Chemistry A-Level, as defined for OCR.
Definition of Standard enthalpy of formation
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Reference: OCR
A measurable enthalpy change that can be used in an enthalpy cycle to find an enthalpy change that is hard to measure directly.
Topics that use Standard enthalpy of formation
- Enthalpy changes (OCR A-Level)
Related terms
- ∆H of combustion
- ∆H of formation
- Activation energy
- Approximate estimate
- Average bond enthalpy
- Averaging over gaseous compounds
- Bond breaking and bond making
- Bond enthalpy
Using Standard enthalpy of formation in the exam
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