Given standard enthalpies for methane, carbon dioxide and water vapour as ~ 75 kJ/mol, 394 kJ/mol and 240 kJ/mol, respectively. What is the net heat of combustion of methane ?

[A] – 799 kJ/mol

[B] – 802 kJ/mol

[C] + 1598 kJ/mol

[D] + 799 kJ/mol

Answer & Explanation
Answer: – 799 kJ/mol

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