Edexcel IAL Chemistry A2 11.5 Deducing reaction order
Edexcel IAL Chemistry A2 11.5 Deducing reaction order
Compare runs where only one concentration changes, calculate the rate factor and match it to concentration raised to power zero, one or two.
How this is tested
- Deduce order by comparing concentration and initial-rate factors between controlled runs.
- Recognise zero-, first- and second-order shapes on rate–concentration graphs.
- Use proportional preparation volumes when absolute concentration is unnecessary for order.