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Heat energy changes in chemical reactions

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Question 14

The thermite reaction is a highly exothermic process used in railway welding. In this reaction, aluminium metal reacts with iron(III) oxide to release a massive amount of heat energy, producing liquid iron and aluminium oxide.

On the axes provided, draw a reaction profile for this exothermic reaction.

Your profile should clearly show and label:

  • the energy of the reactants
  • the energy of the products
  • the activation energy (EaE_aEa​)

Blank axes for a reaction profile.

[3]

Heat energy changes in chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /Heat energy changes in chemical reactions

Question bank