Question: what is the enthalpy change of combustion of urea?
Answer: Combustion of urea CO(NH2)2)is described by the equation: CO(NH2)2 (s) + 3/2 O2 (g) CO2 (g) + N2 (g) + 2H2O(l) The standard enthalpy of combustion of urea is -632 kJ per mole of urea at 298 K.