IB Chemistry SL 2.2.5 Catalysts
IB Chemistry SL 2.2.5 Catalysts
Answer catalyst questions precisely by linking rate increase to mechanism change, lower Ea, and observations that the catalyst remains unchanged.
How this is tested
- state that a catalyst gives an alternative pathway with lower Ea, e.g. CoCl2 or conc. H2SO4
- choose the correct statement that a catalyst changes the reaction mechanism
- for a solid catalyst, note faster reaction under same conditions and the solid remains unchanged