units of k

[Karina Kong 2H]

Could someone explain why there are different units for each order?

[Jiyoon_Hwang_2I]

Its because some of the concentrations are squared or cubed so the units are also squared/cubed

[AronCainBayot2K]

There are different units of k due to the powers involved in concentrations. Units could be more than the power of 1 which would change the unit of k.

[TarynD_1I]

https://users.stlcc.edu/gkrishnan/rateunits.htm
here is a helpful link to organize which units go with each order of reaction!

[Maya Gollamudi 1G]

Depending on the order of each reactant, certain concentrations may be squared, which makes the unit M^2, affecting k.

[005206171]

When you have reactions of different orders, you end up getting mol^n/L^n on the side of k. Since The rate is always mol/Ls, the kr for different orders will change to always cancel out and get mol/Ls for the units of the final answer/rate.