Question
The standard enthalpy of formation (∆fHo) at 298 K for methane, CH4(g), is –74.8 kJ mol–1. The additional information required to determine the average energy for C – H bond formation would be
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the dissociation energy of H2 and enthalpy of sublimation of carbon
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latent heat of vapourization of methane
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the first four ionization energies of carbon and electron gain enthalpy of hydrogen
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the dissociation energy of hydrogen molecule, H2
Solution
A.
the dissociation energy of H2 and enthalpy of sublimation of carbon
