# What is the enthalpy of formation for one mole of carbon dioxide derived from carbon monoxide and oxygen?

$2 C O \left(g\right) + {O}_{2} \left(g\right) \to 2 C {O}_{2} \left(g\right)$
$C \left(s\right) + {O}_{2} \left(g\right) \to C {O}_{2} \left(g\right)$ where DeltaH_f^° = (-393.5kJ)/"mol"