A rough rule says reactions double for every 10°C. See the real relationship — and why a high activation energy makes a reaction so temperature-sensitive.
Arrhenius Reaction RateLive
why heat speeds up reactions
Controls
Presets
Reactions speed up with temperature because more molecules clear the activation-energy barrier. The Arrhenius law k = A·exp(−Ea/RT) captures this — plotting ln k against 1/T gives a straight line whose slope reveals Ea. Educational tool.
Reading this result: At 298 K the +10 K speed-up is 1.9× — the barrier Ea sets the slope −Ea/R of the straight Arrhenius line, so higher Ea tilts it steeper and heat matters more.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
★ Sign in to save this setupSave your tuned setup, or drop this simulation into your own site, docs, or course page.
How it works
The Arrhenius equation k = A·exp(−Ea/RT) explains why heat accelerates reactions: raising the temperature lets more molecules clear the activation-energy barrier. Plotting ln k against 1/T yields a straight line whose slope is −Ea/R. Educational tool.
✦
Ask the AI about this model
The math, the assumptions, real-world uses, or a code translation — explained for this exact simulation.
Is this arrhenius equation calculator tool really free?▾
Yes. Arrhenius Reaction Rate runs entirely in your browser using your device's own compute, so local use is free forever. You only pay Compute Tokens if you scale a job to the cloud.
Do I need to install anything?▾
No. Everything runs client-side in a modern browser — no downloads, no license, no account required to start.
Can I save or share my simulation?▾
Create a free account to save projects, and use a shareable embed or minted DOI to publish a live, interactive version anywhere.
How accurate are the results?▾
The solver uses established numerical methods, but results are for research and educational purposes and should be validated against experiment or professional review before you rely on them.