The Complete Combustion of Propane,C₃H₈(g),is Represented by the Equation

question 45

Multiple Choice

The complete combustion of propane,C₃H₈(g) ,is represented by the equation:
C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(l) Δ_rH° = -2220 kJ /mol
How much heat is evolved in the complete combustion of 20.0 L C₃H₈(g) at STP?

• A)2486 kJ
• B)1007 kJ
• C)994 kJ
• D)1957 kJ
• E)495 kJ

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