In the Presence of Excess Oxygen,methane Gas Burns in a Constant-Pressure

question 107

Multiple Choice

In the presence of excess oxygen,methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH₄(g) + 2 O₂(g) → CO₂(g) + 2 H₂O(l) ΔH = -890.0 kJ
Calculate the value of q (kJ) in this exothermic reaction when 1.10 g of methane is combusted at constant pressure.

• A) -61.2 kJ
• B) 0.0198 kJ
• C) -0.0163 kJ
• D) 50.6 kJ
• E) -6.12 × 10⁴ kJ

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