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(C) Resonance energy is defined as the difference between the energy of the most stable contributing structure and the actual experimental energy of t

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$E_0 - E_3$

Vedclass · Answer

(C) Resonance energy is defined as the difference between the energy of the most stable contributing structure and the actual experimental energy of the molecule. In this case,the most stable structure is the one with the lowest energy,which is $E_3$. Therefore,the resonance energy is calculated as the difference between the energy of the most stable canonical structure $(E_3)$ and the experimental energy $(E_0)$. However,by convention,resonance energy is often expressed as $E_{	ext{resonance}} = E_{	ext{experimental}} - E_{	ext{most stable structure}}$. Given the options and the standard definition,the resonance energy is $E_0 - E_3$.

$A$ molecule may be represented by three structures having energies $E_1$,$E_2$ and $E_3$,respectively. The energies of these structures follow the order $E_3 < E_2 < E_1$. If the experimental bond energy of the molecule is $E_0$,the resonance energy is

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