Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

Red lead oxide, $\text{Pb}_3\text{O}_4$, is used in metal priming paints. It can be prepared by heating PbO in air. $6\text{PbO(s)} + \text{O}_2\text{(g)} \rightarrow 2\text{Pb}_3\text{O}_4\text{(s)}$. Which two quantities are required to calculate the enthalpy change for this reaction?

  • Aenthalpy change of atomisation of $\text{O}_2$ and enthalpy change of formation of $\text{Pb}_3\text{O}_4$
  • Benthalpy change of formation of $\text{O}_2$ and enthalpy change of formation of $\text{Pb}_3\text{O}_4$
  • Centhalpy change of formation of $\text{PbO}$ and enthalpy change of atomisation of $\text{O}_2$
  • Denthalpy change of formation of $\text{PbO}$ and enthalpy change of formation of $\text{Pb}_3\text{O}_4$

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