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Bond Enthalpies

The average bond enthalpy is the energy required to break one mole of a specified type of bond in a gaseous molecule. The actual bond enthalpy will vary depending on the chemical environment of the bond. The average bond enthalpy is calculated from the actual bond enthalpies in different environments.

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Specification: AQA Chemistry (7404), AS-level, 3.1.4.4 Bond enthalpies. Topic: Energetics.

Key terms in this lesson

Mole
The amount of substance that contains as many particles as there are atoms in exactly 12g of carbon-12.
Enthalpy
A measure of the heat energy stored in a chemical system.

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