Question

Combustion of 7.21g of liquid benzene (C6H6) causes a temperature rise of 50.3ºC in a constant-pressure calorimeter that has a heat capacity of 5.99kJ/ºC. What is H for the following reaction?
C6H6(l)+O2(g)→6CO2(g)+3H2O(l)
A) -302 kJ/mol
B) 41.8 kJ/mol
C) -41.8 kJ/mol
D) -3.27 x103 kJ/mol
E) 302 kJ/mol

Answer

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