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Heterogenous Catalysts

OCR AS-level ChemistryReaction RatesLesson 6 of 10

A heterogenous catalyst has a different physical state from its reactants. They are usually solids in contact with gaseous reactants.

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Key terms in this lesson

Catalyst
A substance that increases the rate of a chemical reaction without being used up, by providing an alternative reaction pathway with a lower activation energy.

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