Rate Laws

rate law

expression showing how the rate depends on the concentrations of reactants

In the method of _______, the _______ of a reaction is measured by carrying out the reaction several times using different initial concentrations of reactants to determine the effect of concentration on the rate.

initial rates; initial rate

The value of the rate constant, k, depends on _______ and _______, and its units vary depending on the _______.

temperature; activation energy; reaction order

overall order

sum of the orders for each reactant

integrated rate law

shows how concentration depends on time

[A] = -kt + [A]₀

Zeroth order integrated rate law

ln[A] = -kt + ln[A]₀

First order integrated rate law

1/[A] = kt + 1/[A]₀

Second Order integrated rate law