If the Complete Consumption of 10

question 11

Multiple Choice

If the complete consumption of 10.3 g of C₂H₆ liberates -534.4 kJ of heat energy at constant pressure and 25°C,what is Δ_rH° for the following reaction 2C₂H₆(g) + 7O₂(g) → 4CO₂(g) + H₂O(l)
?

• A) -3120 kJ/mol-rxn
• B) -1560 kJ/mol-rxn
• C) -366 kJ/mol-rxn
• D) -183 kJ/mol-rxn
• E) -785 kJ/mol-rxn

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