Catalysis and activation energy
What Catalysis and activation energy means in Chemistry A-Level, as defined for OCR.
Definitions of Catalysis and activation energy
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Reference: OCR
A catalyst raises the rate of a reaction by providing an alternative route of lower activation energy, and it is not consumed overall.
A catalyst provides an alternative reaction pathway of lower activation energy, so a given rate is achieved at a lower temperature.
A catalyst lowers the activation energy, moving the line left so a larger fraction of molecules exceeds it.
Topics that use Catalysis and activation energy
- Reaction rates (OCR A-Level)
Related terms
- Activation energy
- Alternative reaction pathway
- Boltzmann distribution
- Catalyst examples
- Catalyst regenerated and not consumed
- Catalyst regenerated in the mechanism
- collision frequency
- Collision frequency and rate
Using Catalysis and activation energy in the exam
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