Question

A catalyst can change the :

• A. heat of reaction and the potential energy of the reactants
• B. heat of reaction and the time it takes the reaction to proceed
• C. activation energy of the reverse reaction and the potential energy of the activated complex
• D. potential energy of the reactants and the time it takes the reaction to proceed
• E. activation energy of the forward reaction and the potential energy of the products

Answer 1

The correct option is C activation energy of the reverse reaction and the potential energy of the activated complex

A catalyst can change the activation energy of the reverse reaction and the potential energy of the activated complex
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst. With a catalyst, reactions occur faster and require less activation energy. Because catalysts are not consumed in the catalyzed reaction, they can continue to catalyze the reaction of further quantities of reactant. Often only tiny amounts are required.