Activation Energy Calculator
Arrhenius Equation Calculator
Calculate activation energy using the Arrhenius equation with detailed step-by-step solutions.
Input Parameters
At temperature T₁
At temperature T₂
What is Activation Energy?
Activation energy (Eₐ) is the minimum energy required for a chemical reaction to occur.
k = A × e^(-Eₐ/RT)
where k is rate constant, A is pre-exponential factor, R is gas constant, T is temperature
ln(k₂/k₁) = -Eₐ/R × (1/T₂ - 1/T₁)
Features
- Step-by-step calculations
- Arrhenius equation solver
- Multiple temperature units (K, °C)
- Multiple energy units (J/mol, kJ/mol, kcal/mol)
- Automatic unit conversion
- Rate constant ratio calculation
- Result interpretation
- Copy results
- Quick examples
Key Concepts
Measure of reaction speed at a given temperature
Must be in Kelvin for calculations
8.314 J/(mol·K)
Energy barrier for reaction to proceed
Typical Values
Eₐ < 50 kJ/mol
50-100 kJ/mol
Eₐ > 100 kJ/mol
Eₐ > 200 kJ/mol
Use Cases
- Chemical kinetics studies
- Reaction mechanism analysis
- Catalyst effectiveness evaluation
- Temperature dependence studies
- Shelf life predictions
- Process optimization
- Quality control in manufacturing
- Pharmaceutical stability testing
Applications
Real-World Applications:
Determine reaction mechanisms and pathways
Predict shelf life and spoilage rates
Drug stability and degradation studies
Polymer degradation and aging
You Might Also Like
Explore more tools in this category