Ammonia 1NH32 boils at -33 C; at this temperature it has a
Chapter , Problem 5.107(choose chapter or problem)
Ammonia 1NH32 boils at -33 C; at this temperature it has a density of 0.81 g>cm3 . The enthalpy of formation of NH31g2 is -46.2 kJ>mol, and the enthalpy of vaporization of NH31l2 is 23.2 kJ>mol. Calculate the enthalpy change when 1 L of liquid NH3 is burned in air to give N21g2 and H2O1g2. How does this compare with H for the complete combustion of 1 L of liquid methanol, CH3OH1l2? For CH3OH1l2, the density at 25 C is 0.792 g>cm3 , and Hf = -239 kJ>mol
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