Answer:
Units of k = [tex]s^{-1}[/tex]
Explanation:
According to the law of mass action, the rate of a reaction is determined as the product of the active concentration of the reactant each raised to their experimentally determined coefficients which are known as order.
So, given that:-
Rate = k [X]
Rate of the reaction is also, the change in the concentration per unit time. So, the units of rate of a reaction is :- M/s
Units of [X] = M
So,
[tex]k=\frac{Rate}{[X]}=\frac{M/s}{M}=s^{-1}[/tex]
Units of k = [tex]s^{-1}[/tex]