Rates of reaction and energetics

Free ESAT Chemistry lesson. Worked examples, common mistakes and a self-check.

What the lesson covers

  • Measuring the rate of reaction
  • What changes the rate?
  • Collision theory
  • Activation energy, energy profiles and catalysts
  • Exothermic and endothermic reactions
  • Calculating the energy change from a temperature change
  • Bond energies
  • Putting it together: reading experiments
  • Self-check questions with answers (8)

Specification: C10.1-10.6, C11.1-11.5. Codes follow the UAT-UK ESAT content specification.

How to use it

  1. Read a section, then cover the worked example and try it yourself.
  2. Check the common mistakes list: these are the slips the real test is built to catch.
  3. Do the self-check without looking back. Mark it against the answers.
  4. Then practise the topic under time, with the matching practice set.

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