Catalysts (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
📚Flashcards
Practise the cards
11 cards from this deck
ShowHide
Practise the cards
11 cards from this deck
What is a catalyst?
What is a catalyst?
A substance that participates in reactions but remains unchanged at the end
Catalyst consumption
Catalyst consumption
Not consumed; regenerated and reused
Are catalysts included in balanced equations?
Are catalysts included in balanced equations?
No, not included
What is the main role of catalysts?
What is the main role of catalysts?
Speed up chemical reactions
How do catalysts work?
How do catalysts work?
Provide alternative pathway with lower activation energy
What is activation energy?
What is activation energy?
Minimum energy particles need for reaction to occur
Effect of catalyst on activation energy
Effect of catalyst on activation energy
Lowers it
Result of lower activation energy
Result of lower activation energy
Higher frequency of successful collisions, faster rate
Why are catalysts used in industry?
Why are catalysts used in industry?
Accelerate reactions for manufacturing processes
What are biological catalysts called?
What are biological catalysts called?
Enzymes
Examples of enzyme processes
Examples of enzyme processes
Digestion, respiration, DNA replication