Chemical Thermodynamics Part 1

Section: Chemistry

Question : 83 of 100

Marks: +1, -0

The standard enthalpy of formation ∆fH∘ at 298K for methane, CH4(g), is −74.8‌kJ‌mol−1. The additional information required to determine the average energy for C−H bond formation would be

[AIEEE 2006]

the dissociation energy of H2 and enthalpy of sublimation of carbon
latent heat of vapourisation of methane
the first four ionization energies of carbon and electron gain enthalpy of hydrogen
the dissociation energy of hydrogen molecule, H2

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