Which of the following statements best describes the impact of a catalyst on the enthalpy change of a chemical reaction?

Question

Answer

A catalyst does not affect the enthalpy change; it only alters the activation energy through providing an alternative pathway.

Answer

A catalyst changes the enthalpy change to zero.

Answer

A catalyst decreases the enthalpy change, making the reaction less endothermic.

Answer

A catalyst increases the enthalpy change, making the reaction more exothermic.

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