At Constant Pressure,the Combustion of 15

question 32

Multiple Choice

At constant pressure,the combustion of 15.0 g of C₂H₆(g) releases 777 kJ of heat.What is ΔH for the reaction given below?
2 C₂H₆(g) + 7 O₂(g) → 4 CO₂(g) + 6 H₂O(l)

• A)- 129 kJ
• B)- 779 kJ
• C)-1560 kJ
• D)-3120 kJ

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