ThermochemistryHard
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
Butane exists in various conformations in nature. At any given instant, the probability that a given butane molecule is ...The most exothermic ‘ordinary’ chemical reaction for a given mass of reactants is 2H(g) → H2(g), where ΔE = 103 kcal. Th...In a flask, colourless N2O4 is in equilibrium with brown coloured NO2. At equilibrium, when the flask is heated at 373 K...The enthalpies of formation of FeO(s) and Fe2O3(s) are −65.0 and −197.0 kcal/mol, respectively. A mixture of the two oxi...A quantity of 0.3 g of carbon was converted into CO2 producing 2400 cal of heat. When 0.6 g of carbon was converted to C...