The standard state Gibbs free energies of formation of C

Last updated: 7/4/2023

The standard state Gibbs free energies of formation of C graphite and C diamond at T 298 Kare AG C graphite 0kJ mol 4G C diamond 2 9 kJ mol The standard state means that the pressure should be 1 bar and substance should be pure at a given temperature The conversion of graphite C graphite to diamond C diamond reduces its volume by 2x10 6m mol If C graphite is converted to C diamond isothermally at T 298 K the pressure at which C graphite is in equilibrium with C diamond is Useful information 1 J 1 kg m s2 1 Pa 1 kg m s 1 bar 105 Pa 2