Chemistry 9701 · AS & A Level · 5.1

5.1 — practice question

If $1.0\,\mathrm{mol}$ of ethanoic acid, $\mathrm{CH_3COOH}$, in aqueous solution undergoes neutralisation with excess aqueous sodium hydroxide, $55\,\mathrm{kJ\,mol^{-1}}$ of energy is given out. Which statement about this reaction is correct?

  • AThe reaction is exothermic because only bond breaking takes place.
  • BThe reaction is exothermic because only bond forming takes place.
  • CThe reaction is exothermic because more energy is given out in breaking bonds than is taken in to form bonds.
  • DThe reaction is exothermic because more energy is given out in forming bonds than is taken in to break bonds.

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