Asked Oct 10, 2019

How can I start from the 0th, 1st, and 2nd order rate equations and derive the units for 0th, 1st, and 2nd order rate constants (using moles, liters, and seconds as the basic units)?


Expert Answer

Step 1

Unit of rate constant (k) can be derived from the rate law. Unit of concentration is “mol/L” whereas unit of time is “t” in the 0th, 1st, and 2nd order rate equations. Units for 0th order rate constant can be derived as follows,


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Rate law: A[A] -kt [A-[A k t Unit of concentartion mol/L Unit of k Unit of time Hence, unit of zeroth order rate constant is molL1s1.

Step 2

Units for 1st order rate constant can...


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