Reaction Rate Constant Calculator

Reaction Rate Constant Calculator calculator can be used to calculate the reaction rate constant (k) using the Arrhenius equation.

Input Parameters

Calculation Results

Calculation Formula

k = A * e^(-Ea / (R * T))

Where:
k = Reaction Rate Constant (s-1)
A = Pre-exponential Factor (s-1)
Ea = Activation Energy (J/mol)
R = Gas Constant (8.314 J/mol·K)
T = Temperature (K)

Result

Reaction Rate Constant Calculator Usage Guide

Learn how to use the Reaction Rate Constant Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the pre-exponential factor (A) in units of inverse seconds (s-1). This is a constant that depends on the specific reaction.
  2. Enter the activation energy (Ea) in units of joules per mole (J/mol). This is the minimum energy required for the reaction to occur.
  3. Enter the temperature (T) in units of Kelvin (K). Ensure the temperature is in Kelvin for accurate calculations.
  4. Click the "Calculate" button to compute the reaction rate constant (k).
  5. The result will be displayed in units of inverse seconds (s-1). This value represents the rate at which the reaction occurs at the given temperature.

Working Principle

The calculator uses the Arrhenius equation to calculate the reaction rate constant (k). The Arrhenius equation is given by:

k = A * e^(-Ea / (R * T))

Where:

  • k is the reaction rate constant
  • A is the pre-exponential factor (frequency factor)
  • Ea is the activation energy
  • R is the gas constant (8.314 J/mol·K)
  • T is the absolute temperature in Kelvin

This equation describes how the rate of a chemical reaction depends on temperature and activation energy.