k a partir de 2 temperaturas
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
k₂
About this calculator
The 2V constant velocity calculator is a useful tool for chemistry specialists working with chemical reactions. This calculator allows you to calculate the constant velocity (k₂) from two known temperatures.
The formula used by the calculator is based on the Arrhenius Law, which relates the constant velocity of a chemical reaction to the temperature. This law is expressed by the equation ln(k₂ / k₁) = (Ea / R) * (1 / T₁ - 1 / T₂), where Ea is the activation energy, R is the gas constant, T₁ and T₂ are the temperatures in Kelvin.
This calculator is particularly useful in cases where you need to calculate the constant velocity at a specific temperature, based on measurements taken at other temperatures. In addition, it is essential to keep in mind that the constant velocity is a property that depends on the temperature, so it is crucial to consider the correct temperature when performing calculations.
Remember that this calculator is only a tool and that the results should be interpreted with caution. It is essential to consider measurement errors and factors that can affect the constant velocity, such as the presence of impurities or the nature of the catalyst surface.
Frequently asked questions
What is the Arrhenius Law?
The Arrhenius Law is a mathematical equation that relates the constant velocity of a chemical reaction to the temperature. It provides a way to calculate the constant velocity at a specific temperature, based on measurements taken at other temperatures.
What is the unit of measurement of the constant velocity?
The unit of measurement of the constant velocity is usually expressed in units of time, such as seconds or minutes. However, it is common to express the constant velocity in terms of the rate constant, which is a relative measure of the reaction rate.
Why is it important to consider the temperature when performing constant velocity calculations?
The constant velocity is a property that depends on the temperature, so it is essential to consider the correct temperature when performing calculations. If you ignore the temperature, the results may be significantly different from reality.
Can I use this calculator to calculate the constant velocity at different temperatures?
Yes, this calculator allows you to calculate the constant velocity at different temperatures, provided you have the temperature conditions and the corresponding constant velocities.