Ammonia (NH3) boils at -33 oc; at this temperature it has a density of 0.81 g/cm3 The
Chapter 5, Problem 5.106(choose chapter or problem)
Ammonia (NH3) boils at -33 oc; at this temperature it has a density of 0.81 g/cm3 The enthalpy of formation of NH3(g) is -46.2 kJ/mol, and the enthalpy of vaporization of NH3(/) is 23.2 kJ/mol. Calculate the enthalpy change when 1 L of liquid NH3 is burned in air to give N2(g) and HzQ(g). How does this compare with !lH for the complete combustion of 1 L of liquid methanol, CHpH(I)? For CH30H(/), the density at 25 oc is 0.792 gjcm3 , and t.Hj equals -239 kjjmol.
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