Edexcel IAL Chemistry A2 11.11 Heterogeneous catalysis
Edexcel IAL Chemistry A2 11.11 Heterogeneous catalysis
Describe reactants reaching active sites and adsorbing, bonds weakening while new bonds form and products desorbing to free the surface for another cycle.
How this is tested
- Explain rate stopping when reaction mixture is separated from the solid catalyst.
- Describe adsorption, bond weakening, surface reaction and product desorption.
- Link porous catalyst support to greater surface area and more available active sites.