Which of the following lowers the activation energy of a chemical reaction?

Assessment: WAEC SSCE - Chemistry - 1999 (Objective) Subject: Chemistry

Question 1 Report

Which of the following lowers the activation energy of a chemical reaction?
Answer Details
A catalyst is a substance that lowers the activation energy of a chemical reaction, which means it makes it easier for the reactants to reach the transition state and form products. This is achieved by providing an alternative reaction pathway that has a lower activation energy. Catalysts are not consumed during the reaction and can be used repeatedly. The other options, freezing mixture, reducing agent, and water, do not lower the activation energy of a chemical reaction.
Read lesson note on Rates Of Chemical Reaction (JAMB)
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