For a certain first-order reaction with the general form aA → products,the rate is 0.32 M·s−1 when the concentration of the reactant is 0.27 M.What is the rate constant for this reaction?

Question

Quizplus · Accepted Answer

The rate law for a first-order reaction is: rate = k[A]. We can rearrange this equation to get k = rate/[A]. Plugging in the given values, we get k = 0.32 M·s−1/0.27 M = 1.1 s−1. Therefore, the answer is B, 1.1 s−1.

For a Certain First-Order Reaction with the General Form AA