Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

Which equation describes the process associated with the enthalpy change of atomisation of iodine?

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

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