Using the equations Ca (s) + ½ O₂ (g) → CaO (s) ∆H° = -635 kJ/mol
CaO (s) + H₂O (l) → Ca(OH)₂ (s) ∆H° = -64 kJ/mol
2 H₂ (g) + O₂ (g) → 2 H₂O (l) ∆H° = -572 kJ/mol
Determine the enthalpy for the reaction
Ca (s) + 2 H₂O (l) → Ca(OH)₂ (s) + H₂ (g).