A. The rate remains unchanged
B. The rate doubles
C. The rate triples
D. The rate increases nine times
Answer: The rate increases nine times
What happens to the rate of reaction if the concentration of a reactant is tripled in a second-order reaction?
Additional Information: In a second-order reaction, the rate is proportional to the square of the reactant concentration, so tripling it increases the rate by nine times.
Subjects: Chemical Kinetics, Chemistry