Cinética 2ª ordem
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
2ª ordem
About this calculator
The 2nd Order Concentration Calculator is a useful tool for chemists and chemistry students who need to calculate the kinetics of second-order chemical reactions. Based on the first-order equation, 1/[A] = 1/[A]₀ + kt, this calculator allows you to enter the values of [A], [A]₀ and t to calculate the reaction rate constant kt.
This calculator is especially useful for problems involving the concentration of a substance as a function of time. With the second-order formula, you can calculate the reaction rate and the equilibrium constant of the reaction.
Remember that this calculator is a helper tool and that the results should be verified with experimental data. Also, be careful when entering values, as small errors can significantly affect the results.
Frequently asked questions
What is the order of a chemical reaction?
The order of a chemical reaction is the exponent of the reactant in which the reaction rate is directly proportional. For example, in a second-order reaction, the reaction rate is proportional to the square of the concentration of the reactant.
How do I use this calculator?
Just enter the values of [A], [A]₀ and t into the calculator and it will calculate the reaction rate constant kt. Remember to verify the results with experimental data.
What is the reaction rate constant kt?
The reaction rate constant kt is a measure of the rate of reaction of a substance as a function of time. It is calculated based on the first-order equation and is useful for predicting the concentration of a substance as a function of time.
Why should I be careful when entering the values?
Small errors when entering the values can significantly affect the results. Also, it is important to verify the results with experimental data to ensure accuracy.
What is the concentration of a substance?
The concentration of a substance is the amount of substance per unit volume or mass. It is measured in units such as mol/L or g/L.