The combustion of one mole of benzene takes place at 298 K and 1 atm. After combustion, CO2(g) and H2O (l)
are produced and 3267.0 kJ of heat is liberated.
The standard enthalpy of formation, 
fH of benzene is-

Standard enthalpies of formation of CO
2(g) and H2O (l) are –393.5 kJ mol–1 and – 285.83 kJ mol–1 respectively

1. 54. 24 kJ mol-1
2. 48. 51 kJ mol-1
3. 66. 11 kJ mol-1
4. 15. 21 kJ mol-1

Subtopic:  Hess's Law |
 68%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh