Enthalpy of hydrogenation of cyclohexene is -119-5 "kJ mol"^(-1). If resonance energy of benzene is - 150.4 kJ mol^(-1), its enthalpy of hydrogenation would be

Enthalpy of hydrogenation of cyclohexene is -119-5 "kJ mol"^(-1). If r

1.	Enthalpy of hydrogenation of cyclohexene is -119-5 "kJ mol"^(-1). If resonance energy of benzene is - 150.4 kJ mol^(-1), its enthalpy of hydrogenation would be
Answer» `-358.5 "kJ mol"^(-1)` `-508.9 "kJ mol"^(-1)` `-208.1 "kJ mol"^(-1)` `-269.9 "kJ mol"^(-1)` SOLUTION :Enthalpy of hydrogenation of benzene = 3 x Enthalpy of hydrogenation of cyclohexene - RESONANCE energy of benzene =3 (-119.5)-(-150.4)=-208.1 kJ `mol^(-1)`.