maryanapritchak73961 maryanapritchak73961 03-01-2024 Chemistry contestada A natural-gas fuel contains 85 mol-% methane, 10 mol-% ethane, and 5 mol % nitrogen.What is the standard heat of combustion (kJ-mol⁻¹) of the fuel at 25°C with H₂O(g) as a product?