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Energy Calculations

Comparing Energy Produced By Fuels

When a fuel is burnt, we use an exothermic reaction as a source of energy. Not all fuels
produce the same amount of energy when they burn; some reactions are more exothermic
than others.
It is important to know how much energy a…

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Bond Energy Calculations

The energy needed to break the bond between two atoms is known as the bond energy for
that bond. Bond energies are measured in kJ/mol. They can be used to work out H for many
chemical reactions.

To calculate the energy change for a chemical reaction we…


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