Essential Chemistry for IGCSE - Rate Of Reaction (Section 2 - No. 12)
What is the role of the 'activation energy' in a chemical reaction?
It speeds up the reaction rate.
It lowers the energy of the reactants.
It is the energy needed to start the reaction.
It is the amount of energy released by the reaction.
Explanation
Activation energy is the minimum energy required to initiate a chemical reaction.
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