Chemistry · Thermodynamics
Consider the following thermodynamic data: ΔfH° (methane, g) = -X kJ mol-1 Enthalpy of sublimation of graphite = Y kJ mol-1 Dissociation enthalpy of H2 (g) = Z kJ mol-1 The average bond enthalpy of the C-H bond is given by the expression:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-X + Y + Z4
- 2X + Y + Z
- 3X + Y + 4Z2
- 4X + Y + 2Z4✓
Correct answer
X + Y + 2Z4
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