Question

What are the units of k in the following rate law?Rate = k[X]s/MM/s1/s1/MsMs

Answer 1

Units of k =
`s^(-1)`

Step-by-step 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,

`k=(Rate)/([X])=(M/s)/(M)=s^(-1)`

Units of k =
`s^(-1)`