Question

which factor increases the rate of a chemical reaction by providing an alternative reaction pathway with lower activation energy? a. temperature b. concentration c. catalyst d. surface area

Explanation:

A catalyst speeds up a chemical reaction by providing an alternative reaction pathway with a lower activation energy. Temperature affects the kinetic energy of reactant molecules, concentration affects the frequency of collisions, and surface - area affects the contact between reactants, but only a catalyst changes the activation - energy pathway.

Answer:

C. Catalyst