At Constant Pressure,the Combustion of 20

question 75

Multiple Choice

At constant pressure,the combustion of 20.0 g of C₂H₆(g) releases 1036 kJ of heat.What is ΔH for the reaction given below? 2 C₂H₆(g) + 7 O₂(g) → 4 CO₂(g) + 6 H₂O(l)

• A) -86.1 kJ
• B) -781 kJ
• C) -1600 kJ
• D) -3120 kJ

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