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

question 125

Multiple Choice

In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH₄ (g) + 2O₂ (g) → CO₂ (g) + 2H₂O (l) △H = -890.0 kJ
Calculate the value of q (kJ) in this exothermic reaction when 1.70 g of methane is combusted at constant pressure.

• A)-94.6
• B)0.0306
• C)-0.0106
• D)32.7
• E)-9.46 × 10⁴

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