Question

Heat of combustion of methane is - 890 kJ/mol. On combustion of 12 gm of methane in excess of oxygen, ______ heat is evolved.

पर्याय

• + 667.71 kJ

• − 667.71 kJ

• − 8903 kJ

• + 890.3 kJ

Answer 1

Heat of combustion of methane is - 890 kJ/mol. On combustion of 12 gm of methane in excess of oxygen, − 667.71 kJ heat is evolved.