Question

For the complete combustion of graphite and diamond in oxygen individually, the standard enthalpy change (ho298) values are 393.5 kj mol1 and 395.4 kj mol1, respectively. Then, the ho298 for the conversion of graphite into diamond is

Answer 1

The enthalpies of combustion for graphite and for diamond are, respectively, —394 kJ/mol and —396 kJ/mol.