A-Level Chemistry Rates of Reaction – Year 2 | AQA & OCR | Exam-Ready Revision Cards | Orders, Arrhenius, Mechanisms

These A-Level Chemistry Year 2 Rates of Reaction cards don’t just tell you what to revise — they show you how examiners expect you to think, calculate, and answer.

✔ AQA & OCR aligned

✔ Exam-safe methods

✔ Built for grades A–A*

This Year 2 Rates of Reaction card pack is a complete, structured revision system for A-Level Chemistry students studying AQA or OCR A.

Unlike traditional revision guides, these cards focus on:

• method

• logic

• exam technique

• and common traps students fall into

Every topic is broken down into clear steps, annotated graphs, and exam-style reasoning, so students know exactly what to do under pressure.

✔ Orders of reaction

• Zero, first & second order

• Correct concentration–time and rate–concentration graphs

• Half-life behaviour explained visually

✔ Rate equations

• Determining orders from data (including overlapping experiments)

• Units of k explained clearly

• Step-by-step method cards

✔ Initial rates

• Choosing correct experiments

• Avoiding common examiner traps

• Fully worked logic pathways

✔ Arrhenius equation

• ln k vs 1/T plots

• Activation energy & ln A from graphs

• Calculator guidance

• Exam-safe calculation methods (AQA & OCR)

✔ Energy profiles & rate-limiting step

• Correct Ea measurements

• Clear distinction between steps

• Mechanism logic that matches the rate equation

✔ Iodine clock practical

• Why the colour change happens

• How rate is measured

• Exam-style questions + mark schemes

✔ Exam questions & answers

• OCR- and AQA-style wording

• Structured mark schemes

• Model exam sentences students can memorise