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
(a) the first four ionization energies of carbon and electron
gain enthalpy of hydrogen
(b) the dissociation energy of hydrogen molecule, H₂
(c) the dissociation energy of H₂ and enthalpy of sublimation
of carbon
(d) latent heat of vapourization of methane

Answer 1

$\huge\bold\red{Answer:-}$

(d) latent heat of vapourization of methane

Answer 2

$\huge{\underline{\mathbb{\red{Answer}}}}$

(d) latent heat of vapourization of methane

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$\huge{\underline{\underline{\mathfrak{Thank you}}}}$