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What is the main characteristic of a catalyst in surface reactions?

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Question: What is the main characteristic of a catalyst in surface reactions?

Options:

  1. It is consumed in the reaction.
  2. It lowers the activation energy.
  3. It increases the temperature of the reaction.
  4. It changes the equilibrium constant.

Correct Answer: It lowers the activation energy.

Solution: 

A catalyst lowers the activation energy of a reaction without being consumed in the process.

What is the main characteristic of a catalyst in surface reactions?

Practice Questions

Q1
What is the main characteristic of a catalyst in surface reactions?
  1. It is consumed in the reaction.
  2. It lowers the activation energy.
  3. It increases the temperature of the reaction.
  4. It changes the equilibrium constant.

Questions & Step-by-Step Solutions

What is the main characteristic of a catalyst in surface reactions?
  • Step 1: Understand what a catalyst is. A catalyst is a substance that speeds up a chemical reaction.
  • Step 2: Learn about activation energy. Activation energy is the energy needed to start a reaction.
  • Step 3: Know that a catalyst lowers the activation energy. This means the reaction can happen more easily and quickly.
  • Step 4: Remember that a catalyst is not used up in the reaction. After the reaction, it can still be used again.
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