The reaction A + 2B → Products has been found to have the rate law, rate = k[A][B]². While holding the concentration of A constant, the concentration of B is increased to three times its initial value. By what factor does the rate of reaction increase?

Question

Quizplus · Accepted Answer

According to the rate law, rate = k[A][B]², the reaction rate is directly proportional to the concentration of [B] to the power of 2. Thus, if [B] is increased by a factor of 3, the rate of reaction will increase by a factor of 32 = 9. Therefore, the answer is C, 9.

The Reaction a + 2B → Products Has Been Found