Question
The combustion of one mole of benzne takes place at 298K and 1 atm. After combustion, CO2(g) and H2O (l) are produced and 3267.0 kJ of heat is liberated. Calculate the standard enthalpy of formation, ∆fH° of benzene. Standard enthalpies of formation of CO2(g) and H2O(l) are – 393.5 kJ mol–1 and –285.83 kJ mor–1respectively.
Solution
We just aim at the equation
Here,
