# Gibbs free energy spontaneity 1

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The molar enthalpy of fusion of solid ammonia is $$5.65$$ kJ mol$$^{-1}$$, and the molar entropy of the fusion is $$28.9$$ J K$$^{-1}$$ mol$$^{-1}$$. Calculate the Gibbs free energy change for the conversion of $$1.80$$ mol solid ammonia to liquid ammonia at $$170$$ K, and determine whether or not the ammonia melting is spontaneous at $$170$$ K.

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