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Heat energy changes in chemical reactions

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Question 9

Nitrogen gas reacts with oxygen gas at high temperatures to produce nitrogen monoxide.

N2(g)+O2(g)→2NO(g) \text{N}_2(\text{g}) + \text{O}_2(\text{g}) \rightarrow 2\text{NO}(\text{g}) N2​(g)+O2​(g)→2NO(g)

This reaction is endothermic.

Complete the reaction profile diagram below for this reaction. On your diagram, you should:

  • Draw the curve showing the energy path from reactants to products.
  • Label the products.
  • Draw and label an arrow to show the activation energy (EaE_aEa​).
  • Draw and label an arrow to show the overall energy change (ΔH\Delta HΔH).

An incomplete reaction profile template.

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Heat energy changes in chemical reactions Questions

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

Question bank