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5.1 Exothermic and endothermic reactions

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Question 10

For a reaction, the total energy needed to break the bonds is 1460 kJ/mol. The total energy released when new bonds form is 1825 kJ/mol.

Calculate the overall energy change of the reaction and state whether it is exothermic or endothermic.

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5.1 Exothermic and endothermic reactions Questions

  1. GCSE
  2. /Chemistry
  3. /5.1 Exothermic and endothermic reactions

85 exam-style questions on AQA GCSE Chemistry 5.1 Exothermic and endothermic reactions, covering 5.1.1 Energy transfer during exothermic and endothermic reactions, 5.1.2 Reaction profiles, and 5.1.3 The energy change of reactions. Each one has a worked solution and a mark scheme showing where the marks go.

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