Given ΔHof for CO2(g),CO(g) and H2O(g) are −393.5,−110.5 and −241.8 kJ.mol−1, respectively. The ΔHof [in kJ.mol−1] for the reaction,
The ΔH∘f for CO2(g),CO(g) and H2O(g) are −393.5,−110.5 and −241.8kJ mole−1 respectively. The standard enthalpy change in kJ for the reaction CO2(g) + H2(g) → CO(g) + H2O(g) is