GKFix MCQ Question

Which reaction defines the standard enthalpy of formation of H₂O(l)?

• A. H₂O(l) → H₂(g) + ½O₂(g)
• B. 2H(g) → H₂(g)
• C. H₂(g) + ½O₂(g) → H₂O(l)
• D. H₂O(g) → H₂O(l)