Enthalpy of formation example for water, illustrating the reaction H₂(g) + ½ O₂(g) → H₂O(l) and its standard enthalpy change.
Diagram showing the enthalpy of formation of water, with H₂(g) and ½ O₂(g) reacting to form H₂O(l), with ΔH°f = -285.8 kJ/mol.
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