Chemistry › Section L · Kinetics › Topic L.2
Factors affecting rates
The same reaction can crawl or race depending on how it is set up. Five factors control the speed: what the reactants are, how finely divided they are, how concentrated they are, how hot they are, and whether a catalyst is present.
In this topic
- Same chemistry, different speeds
- The chemical nature of the reactants
- Physical state and surface area
- Worked example: cutting up a cube
- Concentration
- Temperature
- Worked example: the 10-degree rule
- Catalysts
- Common mistakes to avoid
- Key takeaways
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