Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

Which equation shows the change associated with the enthalpy change of atomisation of iodine?

  • A$\frac{1}{2}\,\text{I}_2(\text{g}) \rightarrow \text{I(g)}$
  • B$\text{I}_2(\text{g}) \rightarrow 2\text{I(g)}$
  • C$\frac{1}{2}\,\text{I}_2(\text{s}) \rightarrow \text{I(g)}$
  • D$\text{I}_2(\text{s}) \rightarrow 2\text{I(g)}$

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