Arrhenius Equation Calculator

This calculator is designed for chemistry professionals and students to compute the rate constant of a chemical reaction using the Arrhenius equation. It helps to determine how reaction rates vary with temperature, which is crucial in many scientific and industrial processes.

Calculator

Results

Rate Constant (k): N/A

Data Source and Methodology

All calculations are based on the Arrhenius equation: k = A * exp(-Ea / (R * T)), where R is the universal gas constant (8.314 J/mol·K). This formula provides a precise method for calculating the rate constant of reactions.

The Formula Explained

\( k = A \cdot e^{\frac{-E_a}{R \cdot T}} \)

Glossary of Variables

How It Works: A Step-by-Step Example

Assume a reaction with A=1.5x1012 s-1, Ea=75,000 J/mol, and T=298 K. Using the Arrhenius equation, you can find k by substituting these values into the formula.

Frequently Asked Questions (FAQ)

What is the Arrhenius equation?

The Arrhenius equation is a formula for the temperature dependence of reaction rates.

How do you calculate the rate constant using the Arrhenius equation?

The rate constant can be calculated using the formula: k = A * exp(-Ea / (R * T)).

What does the activation energy represent?

Activation energy is the minimum energy required for a chemical reaction to occur.

Why is temperature important in the Arrhenius equation?

Temperature influences the reaction rate by affecting the kinetic energy of the molecules involved.

Tool developed by Ugo Candido. Contents verified for accuracy.

Last reviewed on: October 10, 2023.