IB Chemistry HL 1.1.3 Stability & energy
IB Chemistry HL 1.1.3 Stability & energy
Practise reading and sketching energy profiles so you can link ΔH, activation energy, catalysts, and relative stability in IB mark-scheme style.
How this is tested
- sketch catalysed and uncatalysed endothermic profiles with ΔH, both Ea values, and equal start/end levels
- judge product stability from an energy profile by comparing product and reactant potential energy levels
- match a profile to N2 + O2 -> 2NO or NaOH + HCl -> NaCl + H2O using the sign and size of ΔH