Chemistry A-Level
adsorption on active sites
What adsorption on active sites means in Chemistry A-Level, as defined for AQA.
Definition of adsorption on active sites
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Reference: AQA
In heterogeneous catalysis the reactants adsorb onto active sites, which weakens their bonds and holds them in a favourable orientation before the products desorb.
Topics that use adsorption on active sites
- Catalysts (AQA A-Level)
Related terms
- area beyond Eₐ
- autocatalysis
- catalyst
- heterogeneous and homogeneous
- lower activation energy
- proportion of successful collisions
- regeneration of the catalyst
- alternative reaction route
Using adsorption on active sites in the exam
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