alleryIn polyatomic molecules, which bond enthalpy term is used?
AMolar bond enthalpy
BMinimum bond enthalpy
CMixed bond enthalpy
DMean bond enthalpy
Answer & Solution
Correct answer: D. Mean bond enthalpy
1. Identical bonds in one molecule need not be identical in energy.
2. A single representative figure is therefore quoted.
3. In polyatomic molecules the term mean or average bond enthalpy is used.
4. So the answer is mean bond enthalpy.
_Source: syllabus Chemistry Part I, Unit 4 'Chemical Bonding and Molecular Structure'_
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