Collision Theory Simulator
Watch molecules collide and see why only fast, well-oriented collisions react.
Total collisions0
Effective (reaction)0
Ineffective (bounce)0
Success rate–
Last collision–
What you can learn
- A collision must have enough energy (at least the activation energy) to react.
- The particles must also hit in the right orientation.
- Most collisions are ineffective, which is why reactions take time.
Frequently asked questions
What is collision theory?
The idea that particles must collide with enough energy and in the right orientation for a reaction to occur.
Why do most collisions not lead to a reaction?
Most collisions are too weak, or the molecules are the wrong way round, so they simply bounce apart.