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Delta(f)H^(Theta) of Cyclohexene (l) and...

`Delta_(f)H^(Theta)` of Cyclohexene `(l)` and benzene at `25^(@)C` is `-156` and `+46 kJmol^(-1)`, respectively. `Delta_("hydrogenation")H^(Theta)` of cyclohexene `(l) at 25^(@)C is -119 kJ mol^(-1)`.
Reasonance energy of benzene is found to be `-38x kJ mol^(-1)`. Find the value of `x`.

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To find the value of \( x \) in the resonance energy of benzene, we can follow these steps: ### Step 1: Write down the given data - \( \Delta_f H^\Theta \) of cyclohexene \( (l) \) = -156 kJ/mol - \( \Delta_f H^\Theta \) of benzene = +46 kJ/mol - \( \Delta_{\text{hydrogenation}} H^\Theta \) of cyclohexene \( (l) \) = -119 kJ/mol - Resonance energy of benzene = -38x kJ/mol ...
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