Use the following data to calculate the molar enthalpy of combustion of ethane, C₂H₆.
2C₂H₂(g) + 5O₂(g) → 4CO₂(g) + 2H₂O(l) ∆H = –2511 kJ/mol
C₂H₂(g) + 2H₂(g) → C₂H₆(g) ∆H = –311 kJ/mol
2H₂(g) + O₂(g) → 2H₂O(g) ∆H = –484 kJ/mol

Question

Use the following data to calculate the molar enthalpy of  combustion of ethane, C2H6.
2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) ∆H = –2511  kJ/mol
C2H2(g) + 2H2(g) → C2H6(g) ∆H = –311 kJ/mol
2H2(g) + O2(g) → 2H2O(g) ∆H = –484 kJ/mol

Accepted Answer

Correct answer: A.

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