8. Thermochemistry
Constant-Volume Calorimetry
13PRACTICE PROBLEM
Write a balanced equation for the complete combustion of linoleic acid (C18H32O2), a polyunsaturated omega-6 fatty acid found in olive oil. Assume that the water produced is in the liquid phase.
Calculate the standard enthalpy of combustion in kJ/mol and the caloric content of linoleic acid in cal/g.
ΔHf (C18H32O2(l)) = −634.7 kJ/mol
ΔHf (CO2(g)) = −393.5 kJ/mol
ΔHf (H2O(l)) = −285.8 kJ/mol
Write a balanced equation for the complete combustion of linoleic acid (C18H32O2), a polyunsaturated omega-6 fatty acid found in olive oil. Assume that the water produced is in the liquid phase.
Calculate the standard enthalpy of combustion in kJ/mol and the caloric content of linoleic acid in cal/g.
ΔHf (C18H32O2(l)) = −634.7 kJ/mol
ΔHf (CO2(g)) = −393.5 kJ/mol
ΔHf (H2O(l)) = −285.8 kJ/mol