The molar enthalpy of fusion of solid magnesium is 8.95 kJ mol-1, and the molar entropy of fusion is 10.0 J K-1 mol-1. (a) Calculate the Gibbs free energy change for the melting of 1.00 mol of magnesium at 955 K. (b) Calculate the Gibbs free energy change for the conversion of 2.20 mol of solid magnesium to liquid magnesium at 955 K. (c) Will magnesium melt spontaneously at 955 K? (d) At what temperature are solid and liquid magnesium in equilibrium at a pressure of 1 atm?

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