The difference between the heat of reaction at constant pressure and the heat of reaction at constant volume for the reaction, 2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l) at 25oC in kJ is:
A
−7.43
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B
+3.72
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C
−3.72
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D
+7.43
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Solution
The correct option is A−7.43 2C6H6(l)+15O2(g)→12CO2(g)+6H2O(l)