question_answer

Bond energy of \[C-C\] and \[C=C\] is 348 and 615 kJ mol-1 respectively. The enthalpy change for the isomerization of gaseous propene to gaseous cyclo propane is \[\text{Propen}{{\text{e}}_{\text{(g)}}}\xrightarrow{\,}\text{Cyclopropan}{{\text{e}}_{\text{(g)}}}\]

A)  \[-81\,kJ\,mo{{l}^{-1}}\]                             

B)  \[-180\,kJ\,mo{{l}^{-1}}\]

C)  \[-79\,kJ\,mo{{l}^{-1}}\]             

D)  \[-89\,kJ\,mo{{l}^{-1}}\]