Catalyst - IGCSE Chemistry Definition
Reviewed by: Alexandra Brennan
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What are catalysts?
In IGCSE chemistry, a catalyst is a substance that speeds up the rate of a chemical reaction without being used up or permanently changed in the process. It works by providing an alternative reaction pathway with a lower activation energy, allowing more particles to react successfully.
Catalysts are widely used in industry to improve efficiency and reduce energy costs, such as iron in the Haber process for ammonia production or platinum in car exhaust systems to reduce pollution. Understanding catalysts is important in IGCSE Chemistry, especially when studying reaction rates and industrial application
Catalyst Revision Resources to Ace Your Exams
For more information about catalysts check out the following resources:
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