The rate law of a particular reaction was determined to be Rate = k[A][B]. What is the unit of the rate constant for the reaction?

Question

Quizplus · Accepted Answer

The rate constant has units of M^(-1)s^(-1), which can be simplified to 1/(Ms) since M represents moles per liter (concentration) and s represents seconds (time). Choice A is incorrect because it only has the units of M/s, without the inverse of time. Choice C is incorrect because it includes units of ², which are not relevant to the problem. Choice D is incorrect because it only has the units of 1/s, without the concentration term. Choice E is incorrect because it only has the units of Ms, without the inverse of concentration.

The Rate Law of a Particular Reaction Was Determined to Be