Which quantity is affected when a catalyst is added to a chemical reaction?

1. Enthalpy 2. Activation energy
3. Entropy 4. Internal energy
Subtopic:  Catalyst |
 95%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.

The effect of adding a catalyst on the activation energy (Ea) of a reaction is:
1. Activation energy decreases.
2. Activation energy increases.
3. Activation energy remains the same.
4. It depends on the reaction.
Subtopic:  Catalyst |
 83%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.