8. Thermochemistry
Enthalpy of Formation
1PRACTICE PROBLEM
Given the following reaction and standard enthalpy values, find ΔH°f (kJ/mol) for cyclohexane (C6H12).
C6H12 (l) + 9 O2 (g) → 6 CO2 (g) + 6 H2O (l) ΔH°Rxn = −3919.6 kJ
ΔH°f (CO2) = −393.5 kJ/mol
ΔH°f (H2O) = −285.8 kJ/mol
Given the following reaction and standard enthalpy values, find ΔH°f (kJ/mol) for cyclohexane (C6H12).
C6H12 (l) + 9 O2 (g) → 6 CO2 (g) + 6 H2O (l) ΔH°Rxn = −3919.6 kJ
ΔH°f (CO2) = −393.5 kJ/mol
ΔH°f (H2O) = −285.8 kJ/mol