The Hill Every Reaction Has to Climb

One curve, one axis, and the whole of Unit 5 reads off it. Where the barrier is, how high it is, how far downhill the reaction ends up — and why a wildly exothermic reaction can still sit on your desk doing nothing for years. Topic 2.2 drew a potential-energy curve against distance. This is the same curve, against progress.

8 STEPS · 6 QUICK CHECKS · E_a = 60 kJ · ΔH = −15 kJ · v1