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The immense thermodynamic stability of benzene is quantified by its resonance energy. What is the apHydrocarbons Chemistry Question

Question

The immense thermodynamic stability of benzene is quantified by its resonance energy. What is the approximate accepted value of this resonance stabilization energy?

Answer: A

💡 Solution & Explanation

Comparing the experimental heat of hydrogenation of benzene to a hypothetical "cyclohexatriene", the delocalized aromatic system is found to be more stable by about $151 \text{ kJ/mol}$ (or $\approx 36 \text{ kcal/mol}$).

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