GraphIt
.now
/
Subjects
Tutorial
About
Contact
/
Chemistry
/
Arrhenius Equation
/
Advanced Editor
🧪 Chemistry
← Standard view
Scale Graph to Fit Data
Copy
PNG ↓
Labels
Graph title
X-axis label
Y-axis label
Axis Bounds
X-Axis
to
Y-Axis
to
Apply
Parameters
Activation Energy Ea₁ (kJ/mol)
Activation Energy Ea₂ (kJ/mol)
Pre-exponential factor ln A
Key Concepts
•
k = A·e^(−Ea/RT)
— rate constant increases exponentially with temperature
• Taking ln:
ln k = ln A − Ea/(RT)
— a linear equation
• Plot ln k vs 1/T → straight line with
slope = −Ea/R
• Steeper negative slope = higher activation energy (reaction more temperature-sensitive)
• Ea can be determined experimentally from the gradient: Ea = −slope × R
Legend
Show Legend
Yes
No
Size
10