Catalysts (AQA GCSE Chemistry Combined Science): Flashcards
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Definition of a catalyst
Definition of a catalyst
Substance that speeds up reactions but remains unchanged at the end
Catalyst consumption in reactions
Catalyst consumption in reactions
Not consumed; regenerated and can be reused
Main role of catalysts
Main role of catalysts
Speed up chemical reactions
How catalysts speed up reactions
How catalysts speed up reactions
Provide alternative pathway with lower activation energy
Activation energy definition
Activation energy definition
Minimum energy particles need for a reaction to occur
Effect of lowering activation energy
Effect of lowering activation energy
More particles have enough energy to react successfully
Result of catalyst on collision rate
Result of catalyst on collision rate
Higher frequency of successful collisions
Catalysts in balanced equations
Catalysts in balanced equations
Not included in the equation
Industrial use of catalysts
Industrial use of catalysts
Accelerate reactions too slow for manufacturing processes
Biological catalysts
Biological catalysts
Enzymes
Examples of enzyme processes
Examples of enzyme processes
Digestion, respiration, and DNA replication