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Catalysts
Unit 2
Question | Answer |
---|---|
How does a catalyst work? | provides an alternative pathway with a lower activation energy. |
Enzymes | biological catalyst |
Advantages of using catalysts | lower temperature and pressure, save energy and cost |
enzymes for catalysts | pure products with no side reactions biodegradable enzymes, non toxic food/drink and washing powders |
Why are catalysts important | change chemical feedstock into useful products |
Why are catalysts good for the environment? | lower temperature and pressure, less energy used and less fossil fuels released. Reduce waste and provide a better atom economy |
Bad for the environment? | do not last forever, need to be disposed of but many contain toxic chemicals or are valuble so need to be recycled. |