Endothermic and Exothermic Reactions

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Energy Changes in Reactions - Endothermic and Exothermic Reactions

Exothermic

Transfers heat energy to surroundings

For example neutralisation reaction between an acid and an alkali

Temperature increases as reaction takes place

Endothermic

Takes in energy from surroundings

For example thermal decomposition

Temperature decreases as reaction takes place

A reversible reaction…

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