Combustion of 3

question 9

Multiple Choice

Combustion of 3.65 g of liquid benzene (C₆H₆) causes a temperature rise of 21.1°C in a constant-pressure calorimeter that has a heat capacity of 7.23 kJ/°C.What is ΔH for the following reaction?
C₆H₆(l) + O₂(g) → 6CO₂(g) + 3H₂O(l)

• A)150 kJ/mol
• B)41.8 kJ/mol
• C)-41.8 kJ/mol
• D)-3.27× 10³ kJ/mol
• E)152 kJ/mol

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