Question

Catalysts increase the rate of a reaction by

A) being consumed during the reaction.
B) raising the temperature of the reaction.
C) raising the concentration of the reactants.
Eliminate
D) lowering the activation energy of a reaction.

Answer 1

D. Lowering the activation energy of a reaction.

Step-by-step explanation:

Catalysts increase the rate of a reaction by providing an alternative pathway with a lower activation energy. This is because catalysts are molecules which help the reactants in the reaction to react and bond or break apart while not being used up in the reaction themselves. They do not affect the temperature or concentration of the reactants because the reactant molecules simply slot into their active sites to be broken apart or bonded together.

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