Given the rate law for a reaction, rate = k[A][B]², where rate is measured in units of M s^-1, what are the units for the rate constant k

Question

Quizplus · Accepted Answer

The units of the rate constant k can be derived using the rate law equation. The concentration of A and B are both raised to the first power, while the concentration of ² is raised to the power of one. Therefore, the overall unit for the rate law is M s^-1. To achieve this same unit in the rate constant, the units must cancel out. Thus, the overall unit of the rate constant k is M^-1S^-1, which is equivalent to option C.

Given the Rate Law for a Reaction, Rate = K[A][B]2

Given the Rate Law for a Reaction, Rate = K[A][B]²