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Course: High school chemistry > Unit 3

Lesson 4: Energy of chemical reactions
Science
High school chemistry
Chemical reactions
Energy of chemical reactions
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Problem

The following diagram represents a chemical reaction (the reaction system) and the surrounding environment.
Use the diagram to complete the statements.
  • The diagram shows that the energy required to break the bonds in the reactants is
    than the energy released during the formation of products.
  • The diagram represents an
    reaction.
  • The diagram shows that, overall, 240 kJ of energy is transferred
    the surroundings. This will result in the surroundings becoming
    .