Chemistry 9701 · AS & A Level · Chemical energetics

Chemical energetics — practice question

Which two standard enthalpy changes have the same numerical value?

  • Aatomisation of $\text{CH}_4(\text{g})$ and formation of $\text{CH}_4(\text{g})$
  • Bcombustion of $\text{CH}_3\text{OH}(\text{l})$ and combustion of graphite $+$ $2\times$ (combustion of $\text{H}_2(\text{g}))$
  • Ccombustion of graphite and formation of $\text{CO}_2(\text{g})$
  • Dneutralisation of $\text{HCl}(\text{aq})$ with $\text{NaOH}(\text{aq})$ and formation of $\text{H}_2\text{O}(\text{l})$

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