Units [ENDORSED]

[Ryan Neis 2L]

What are the units for zero, first, and second-order reactions?

[Andy Nguyen 1A]

The unit for k in a 0 order reaction is mol/(L*s). In a first order reaction, k is in 1/s. In a second order reaction, k is L/(mol*s).

[Katie Lam 1B]

The units for the rate constant changes depending on the order of reaction, but the rate itself is always in mol/(L*s).

[Justin Folk 3I]

What about units for a 1.5 order?

[Seth_Evasco1L]

Units of k for a reaction order of 1.5 would most likely have units of L^0.5*mol^-0.5*s^-1.

[Liz White 1K]

As a general formula to calculate the units of the rate constant for any reaction order n, you can use the equation:

units of k = (L/mol)^n-1 / s