At Constant Pressure and 25°C,what Is Δ_rH° for the Following

question 62

Multiple Choice

At constant pressure and 25°C,what is Δ_rH° for the following reaction 2C₂H₆(g) + 7O₂(g) → 4CO₂(g) + H₂O(l)
If the complete consumption of 22.7 g of C₂H₆ liberates -1178 kJ of heat energy?

• A) -3120 kJ/mol-rxn
• B) -1560 kJ/mol-rxn
• C) -1780 kJ/mol-rxn
• D) -889 kJ/mol-rxn
• E) -788 kJ/mol-rxn

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