he molar enthalpy of fusion of solid ammonia is 5.65 kJ mol"!, and the molar entropy of fusion is 28.9 J K-mol-1. a) Calculate the Gibbs free energy change for the melting of 1.00 mol ammonia at 170 K. b) Calculate the Gibbs free energy change for the conversion of 3.60 mol solid ammonia to liquid ammonia at170 K. c) Will ammonia melt spontaneously at 170 K? d) At what temperature are solid and liquid ammonia in equilibrium at a pressure of 1 atm?
