Question

166.) The standard enthalpy of formation (AHY)
at 298 K for methane, CH.(g) is
-74.8KJmol. The additional information
required to determine the average energy
for C-H bond formation would be
1) The dissociation energy of H, and enthalpy
of sublimation of carbon
2) The latent heat of vaporisation of methane
3) The first four ionisation energies of carbon and
electron gain enthalpy of hydrogen
4) The dissociation energy of hydrogen molecule​

Answer 1

Explanation:

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