Problem: What are the units for the rate constant of a second-order reaction?A. Ms-1B. M-1s-1 C. M-2s-1D. s-1E. M-1s

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We’re being asked to determine the units for the rate constant of a second-order reaction


Recall that the rate law only focuses on the reactant concentrations and has a general form of:

rate law=kAxBy

k = rate constant
A & B = reactants
x & y = reactant orders


To determine the unit of the rate constate, k, we will use the following equation:

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Problem Details

What are the units for the rate constant of a second-order reaction?

A. Ms-1

B. M-1s-1 

C. M-2s-1

D. s-1

E. M-1s

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