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Brainlag Learn / GCSE Chemistry

Rates of reaction and equilibrium

Measuring and graphing rates, collision theory and the factors that change a rate, the rates required practical, reversible reactions and how conditions move an equilibrium.

Lessons

  1. Measuring the rate of a reactionWhat a rate of reaction is, how to measure one, and how to work out a mean rate with the right unit. 20 min, free
  2. Rate graphs and tangentsRead a volume-time graph, find mean rates from it, compare two curves and use a tangent for the rate at one moment. 20 min, with the Rates of reaction simulation, free
  3. Collision theory and the factors that change a rateWhy temperature, concentration, pressure, surface area and catalysts change the rate, explained with collisions and activation energy. 25 min, with the Rates of reaction simulation, Plus
  4. Required practical: concentration and rateThe rates required practical by the disappearing cross or by collecting gas, with its variables, results tables, 1000 ÷ time, graphs and conclusions. 25 min, Plus
  5. Reversible reactions and dynamic equilibriumReactions that go both ways, the energy they transfer each way, and what equilibrium in a closed system means. 20 min, Plus
  6. Changing the conditions at equilibriumHow changing concentration, temperature or pressure moves the position of an equilibrium, and what that does to the yield. 25 min, Plus, Higher tier

Practise and test

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