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AQA GCSE Chemistry · Topic 5

Energy Changes flashcards

29 cards on Energy Changes, every one written against a numbered point in section 4.5 of the AQA Chemistry spec. Here’s what the topic covers, and 3 cards to try.

  • 29Flashcards
  • 6Sub-topics
  • 6Higher only
  • 10Triple only

Try 3 cards from Energy Changes.

Answer each one in your head, then check. In the app, how well you knew it decides when you see it again.

  • 4.5.1.1 · Exothermic & Endothermic

    Is energy conserved in chemical reactions?

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    Yes. The energy in the universe is the same before and after. If energy is transferred to the surroundings, the products have less energy than the reactants by that amount.

  • 4.5.1.1 RP4 · Required Practical: Temperature Changes

    Describe the required practical to investigate temperature change in a neutralisation.

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    1. Put 30 cm³ of acid in a polystyrene cup inside a beaker and record its temperature
    2. Add a measured volume of alkali, put on a lid, stir
    3. Record the highest temperature
    4. Repeat with different volumes of alkali
  • 4.5.1.2 · Reaction Profiles

    What is activation energy?

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    The minimum amount of energy that particles must have to react when they collide.

  • +26more Energy Changes cards in the app, shown to you just before you’d forget them.Join the waitlist →

What’s in Energy Changes?

Every part of section 4.5 of the AQA spec, and how many cards cover it. Higher-only cards are hidden for Foundation students. Cards only on the separate Chemistry GCSE are hidden for Combined Science.

  1. 4.5.1.1Exothermic & Endothermic7 cards
  2. 4.5.1.1 RP4Required Practical: Temperature Changes3 cards
  3. 4.5.1.2Reaction Profiles4 cards
  4. 4.5.1.3Bond Energies5 cards
  5. 4.5.2.1Cells & BatteriesTriple only5 cards
  6. 4.5.2.2Fuel CellsTriple only5 cards

Required practicals in this topic.

The method, the variables and a worked example for each.

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The other 26 cards are in the app.

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