Edexcel IAL Chemistry AS 9.6 Catalysed and uncatalysed reaction profiles
Edexcel IAL Chemistry AS 9.6 Catalysed and uncatalysed reaction profiles
Place both routes on identical endpoints, draw the catalysed peak lower, measure each Eₐ upward from reactants and show ΔH between endpoint levels with direction.
How this is tested
- Draw both pathways on common endpoints with the catalysed peak below the uncatalysed peak.
- Label each Eₐ from the reactant level to its peak and ΔH between endpoint levels.
- Include a distinct intermediate energy level when the catalysed mechanism requires one.