Here's a breakdown:
* Catalyst: A substance that increases the rate of a chemical reaction without being consumed in the process. It provides an alternative pathway with a lower activation energy, making the reaction occur faster.
* Activation Energy: The minimum amount of energy required for a reaction to occur. Catalysts lower this energy barrier.
Examples of Catalysts:
* Enzymes: Biological catalysts that speed up biochemical reactions in living organisms.
* Metals: Many metals like platinum, nickel, and palladium are used as catalysts in industrial processes.
* Acids and Bases: Can act as catalysts in certain reactions.
Key Points:
* Catalysts are not consumed in the reaction.
* They can be used repeatedly.
* Catalysts do not change the equilibrium position of a reversible reaction; they simply speed up the reaction rate.
Let me know if you have any more questions!
