Final answer:
In chemistry, the units of k depend on the order of the reaction. The rate law can be expressed in terms of formation and consumption with different reactants depending on the order of the reaction.
Step-by-step explanation:
In chemistry, the units of k depend on the order of the reaction. The rate law expresses the relationship between the rate of a reaction and the concentrations of the reactants. To determine the units of k, you need to look at the overall order of the reaction.
For example, if the rate law for a reaction is rate = k[A][B], where [A] and [B] are the concentrations of reactants, the units of k would be (M/s) / (M2) = M-1 s-1.
The rate law can be expressed in terms of formation and consumption by considering the stoichiometry of the reaction. For example, if the reaction is aA + bB → cC, the rate law could be written as rate = k[A]a[B]b or rate = k[C]c depending on the order of the reaction.
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