Collisions and rateChange one factor, press Run, compare the lines
- Higher concentration: more particles in the same space → more frequent collisions.
- Higher temperature: particles move faster and carry more energy → more collisions, and more of them successful.
- Larger surface area (e.g. a powder): more particles exposed at the surface → more collisions per second.
- A catalyst: provides an easier path needing less energy → more collisions succeed. It is not used up.
Reactant A (solid) Reactant B Product
- Collisions
- 0
- Successful
- 0
- Product made
- 0
A model: real reactions involve far more particles.