Physics, asked by molecular, 1 year ago

the enthalpy of hydrogenation of cyclohexene is -1 19.5 kilo joule per mole and resonance energy of benzene is - 150.4 kilo joule per mole the enthalpy of hydrogenation would be​

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Answered by knjroopa
20

Answer:

Explanation:

given The enthalpy of hydrogenation of cyclohexene is -1 19.5 kilo joule per mole and resonance energy of benzene is - 150.4 kilo joule per mole the enthalpy of hydrogenation would be

 Given

Enthalpy of hydrogenation of cyclohexene = - 119 KJ / mol that is C = C

Therefore enthalpy of hydrogenation of benzene will be – 119 x 3 = - 357 K J / mol

Resonance energy of benzene = Δ h Exp – Δ h cal

-150.4 = - 357 - Δ h cal

 Δ h cal = - 206.6 KJ / mol

Therefore enthalpy of hydrogenation of benzene will be – 206.6 K J / mol

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