Explore the Reaction Rate Simulator
Change temperature and concentration and see how fast a reaction goes. Free, no signup, runs in your browser.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
Illustration. Open the tool for the real thing.
See it in action
The Reaction Rate Simulator with sample data entered and the result showing.
What is the Reaction Rate Simulator?
Change temperature and concentration and see how fast a reaction goes. It runs in your browser, so a change to a setting or a drag on an object shows up at once.
Controlling reaction rate matters in food storage, medicine shelf life, car engines, fertiliser production and industrial chemistry.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Higher concentration means more collisions per second.
Higher temperature makes particles faster, so more collisions have enough energy.
The rate is the slope of the concentration-time graph.
Double the amount of A and B.
Raise the temperature.
Raise the activation energy.
Used for
Pick one to see how it fits.
Reactions & Kinetics learners
Students learning reaction rates, equilibrium and equations, and teachers who want a visual way to explain what happens to particles.
Try it freeTeachers
For teachers: project the Reaction Rate Simulator on the board, let students predict the result, then run it together and test this: Raise the temperature. For students: change one thing at a time and write down what changes.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This simulation | Textbook diagram | |
|---|---|---|
| Interactive | Drag, tap and change settings | Fixed picture |
| Install | Nothing to install | Not needed |
| Cost | Free to use | Depends on the book |
Questions people ask
Why does raising the temperature speed up a reaction?
Particles move faster, so they collide more often and, more importantly, more of the collisions have at least the activation energy.
How do you measure a reaction rate?
By how quickly a reactant is used up or a product forms over time, which is the slope of the concentration-time graph.
Is the Reaction Rate Simulator free to use?
Yes. The Reaction Rate Simulator is free, needs no signup or download and runs in your web browser. It is part of the Reactions & Kinetics group of AZRS simulations.
Does the Reaction Rate Simulator work on a phone or tablet?
Yes. The Reaction Rate Simulator takes touch input as well as mouse input, so you can use its 4 adjustable settings with a finger. A larger screen makes the controls and graphs easier to read.
How do I use the Reaction Rate Simulator?
1. In the Reaction Rate Simulator, use the controls to change Temperature, Amount of A, Amount of B, Activation energy. The simulation reacts instantly. 2. In the Reaction Rate Simulator, press "Pause", "Restart" to start, reset or change what is happening. 3. Start with this experiment: Double the amount of A and B. Drag any glowing handle, object or slider with your mouse or finger and the Reaction Rate Simulator responds in real time. 4. Change one setting at a time and watch which readout moves, then compare it with this idea: Higher concentration means more collisions per second.
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Try the Reaction Rate Simulator now
Change temperature and concentration and see how fast a reaction goes. Free to use.
Try it free