The standard enthalpy of formation (Delta H^(0)) at 298K for methane, CH_(4(g)) is 74.8 kJ mol^(1). The additional information required to determine the average energy for C-H bond formation would be

The standard enthalpy of formation (Delta H^(0)) at 298K for methane,

1.	The standard enthalpy of formation (Delta H^(0)) at 298K for methane, CH_(4(g)) is 74.8 kJ mol^(1). The additional information required to determine the average energy for C-H bond formation would be
Answer» The dissociationeneergy of hydrogen molecule, `H_(2)` The DISSOCIATION energy of hydrogen molecule, `H _(2)` Latent heat of vaporisation of methane. The first FOUR ionisation energies of carbon and electron gain ENTHALPY of hydrogen ANSWER :B