Chemistry A-Level
Bond breaking and bond making
What Bond breaking and bond making means in Chemistry A-Level, as defined for OCR.
Definition of Bond breaking and bond making
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Reference: OCR
Bonds broken in the reactants and bonds made in the products are summed separately, and the relationship ΔH = Σ(bonds broken) − Σ(bonds made) is applied.
Topics that use Bond breaking and bond making
- 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 enthalpy
- Calculating enthalpy changes
Using Bond breaking and bond making in the exam
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