Chemistry - Thermochemistry Question with Solution | TestHub

${\mathrm{C}}_{\text{(diamond) }}+{\mathrm{O}}_2(\mathrm{g})\to {\mathrm{CO}}_2(\mathrm{g});\Delta \mathrm{H}=-395\mathrm{kJ}$ ${\mathrm{C}}_{(\text{graphite })}+{\mathrm{O}}_2(\mathrm{g})⟶{\mathrm{CO}}_2(\mathrm{g});\Delta \mathrm{H}=-393.5\mathrm{kJ}$

Standard enthalpy of transition for formation of 1 mole diamond from graphite is :-