ThermochemistryMedium
Question
The enthalpy of hydrogenation of benzene is –51.0 kcal/mol. If enthalpy of hydrogenation of 1, 4-cyclohexadiene and cyclohexene is –58 kcal/mol and –29 kcal/ mol, respectively, then what is the resonance energy of benzene?
Options
A.29 kcal/mole
B.36 kcal/mole
C.58 kcal/mole
D.7 kcal/mole
Solution
$|R.E.| = 29 \times 3 - 51 = 36\text{ kcal/mol}$
Create a free account to view solution
View Solution FreeMore Thermochemistry Questions
The ᐃHfo for CO2(g), CO(g) and H2O(g) are - 395.5, - 110.5 and - 241.8 kJ mol-1 respectively. The standard enthalp...Given enthalpy of formation of CO2(g) and CaO(s) are −94.0 kJ and −152 kJ, respectively, and the enthalpy of the reactio...Using the data provided, calculate the multiple bond energy (kJ mol-1) of a C ≡ C bond in C2H2. That energy is (take t...Heat absorbed in the reaction H2(g) + Cl2(g) → 2HCl(g) is 182 kJ. Bond energies of H–H = 430 kJ/mole and Cl–Cl = 242 kJ/...The ᐃHof for CO2(g), CO(g) and H2O(g) are - 393.5 - 110.5 and 241.8 kJ mol -1 respectively. The standard enthaly c...