Carbon occurs in two forms, graphite and diamond. The enthalpy of the combustion of graphite is -393.5 kJ/mol, and that of

Question

Carbon occurs in two forms, graphite and diamond. The enthalpy of the combustion of graphite is -393.5 kJ/mol, and that of diamond is -395.4 kJ/mol:

C (graphite) + O₂(g) → CO₂ (g) ΔH=-393.5 kJ
C (diamond) + O₂(g) → CO₂ (g) ΔH=-395.4 kJ
Calculate ΔH for the conversion of graphite to diamond: C (graphite) → C (diamond) ΔH =?

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