Which of the following equations corresponds to the enthalpy of combustion at 298 K?

Chemistry · NEET · NTA Exams — Chemical Thermodynamics

1. C₂H₆(g) + \(\frac{7}{2}\)O₂(g) → 2CO₂(g) + 3H₂O(g)
2. 2C₂H₆(g) + 7O₂(g) → 4CO₂(g) + 6H₂O(g)
3. C₂H₆(g) + \(\frac{7}{2}\)O₂(g) → 2CO₂(g) + 3H₂O(l)
4. 2C₂H₆(g) + 7O₂(g) → 4CO₂(g) + 6H₂O(l)

Answer

(C) C 2 H 6 (g) + 7 2 O 2 (g) → 2CO 2 (g) + 3H 2 O(l)

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