Integrated Rate Equation
What is Integrated Rate Equation?
The integrated rate equation expresses the concentration of a reactant as a function of time for a given reaction order, derived by integrating the differential rate law. For a first-order reaction, [A]t = [A]₀e^(−kt); for second-order, 1/[A]t = 1/[A]₀ + kt; and for zero-order, [A]t = [A]₀ − kt. These equations are used experimentally to determine reaction order and rate constants from concentration-time data.
Key Facts
Frequently Asked Questions
The integrated rate equation expresses the concentration of a reactant as a function of time for a given reaction order, derived by integrating the differential rate law. For a first-order reaction, [A]t = [A]₀e^(−kt); for second-order, 1/[A]t = 1/[A]₀ + kt; and for zero-order, [A]t = [A]₀ − kt. These equations are used experimentally to determine reaction order and rate constants from concentration-time data.