Question

which of the following best describes the result of using a catalyst in a

the yield of product is increased.

the reaction is completed in a shorter amount of time.

a more desirable product is often formed.

a greater amount of heat energy is released by the reaction.

previous

Explanation:

A catalyst speeds up a chemical reaction by lowering the activation energy. It does not change the yield of the product (so the first option is wrong), does not affect the nature of the product (so the third option is wrong), and does not change the amount of heat energy released (so the fourth option is wrong). It only makes the reaction reach equilibrium faster, meaning the reaction is completed in a shorter amount of time.

Answer:

The reaction is completed in a shorter amount of time.