Describe the difference between the rate constant and the rate of a reaction.
The rate of a reaction is the change in concentration with respect to time of a product. The rate equals the rate constant times the concentrations of the reactants raised to their orders. A rate constant is a proportionality constant in the rate law that is a measure of the intrinsic reactivity of the reaction. The rate constant does not depend on the concentrations of reactants but the rate does (if it is not zero order).
What is the order of the following reaction?
There is not enough information to solve this problem. The order of a reaction must be experimentally determined. The order and stoichiometry of a reaction are causally disconnected.
If a reaction has an order of three, write three rate laws that could describe the reaction.
rate = k [A]3
rate = k [A]2 [B]
rate = k [A] [B]2
rate = k [A] [B] [C], etc.