[" 20.The standard molar enthalpies of formation "],[" of cyclohexane(1) and bezene( "(1)" at "25^(@)C" are "],[-156" and "+49kj/mol" respectively.The standard "],[" enthalpy of hydrogenation of cyclohexene(l) at "],[25^(@)C" is "-119kj/mol" .The magnitude of the "],[" resonance energy of benzene: "]

The standard molar enthalpies of formation of cyclohexane (l) and benzene (l) at 25^(@)C "are" -156 and +49kJ mol^(-1) respectively. The standard enthalpy of hydrogenation of cyclohexene (l) at 25^(@)C is -119kJ mol^(-1) . Use these data to estimate the magnitude of the resonance energy of benzene.

The standard molar enthalpies of formation of cyclohexane (l) and benzene (l) at 25^(@)C are -156 and +49 kJ mol^(-1) , respectively. The standard enthaly of hydrogenation of cyclohenxene (l) at 25^(@)C is -119 kJ mol^(-1) Use this data to estimate the magnitude of the resonance enegry of benzene.

The standard molar enthalpies of formation of cyclohexane (l) and benzene (l) at 25^(@)C are -156 and +49 kJ mol^(-1) , respectively. The standard enthaly of hydrogenation of cyclohenxene (l) at 25^(@)C is -119 kJ mol^(-1) Use this data to estimate the magnitude of the resonance enegry of benzene.

The standard molar enthalpies of formation of cyclohexane (I) and benzene(I) at 25^(@)C are -156 and +49 KJ mol^(-1) respectivelyl. The standard enthalpy of hydrogentation of cyclohexene (I) at 25^(@) is -119 KJ mol^(-1) . Use these data to estimate the magnitude of the resonance energy of benzene.

The standard molar enthalpies of formation of cyclohexane (I) and benzene(I) at 25^(@)C are -156 and +49 KJ mol^(-1) respectivelyl. The standard enthalpy of hydrogentation of cyclohexene (I) at 25^(@) is -119 KJ mol^(-1) . Use these data to estimate the magnitude of the resonance energy of benzene.

The standard molar enthalpies of formation of cyclohexane (I) and benzene(I) at 25^(@)C are -156 and +49 KJ mol^(-1) respectivelyl. The standard enthalpy of hydrogentation of cyclohexene (I) at 25^(@) is -119 KJ mol^(-1) . Use these data to estimate the magnitude of the resonance energy of benzene.

The standard molar enthalpies of formation of cyclohexane (l) and benzene (l) at 25^@C are - 156 and +49 KJ mol^(-1) respectively. The standard enthalpy of hydrogenation of cyclo hexene (l) at 25^@C " is" -116 "KJ mol" ^(-1) . Use these data to estimate the magnitude of the resonance energy of benzene.