A 870-g quantity of a substance is at its melting point of -117.9C in the liquid...

 

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A 870-g quantity of a substance is at its melting point of -117.9C in the liquid state. The heat of fusion of ethanol is 1.63 105 J/kg, the molecular mass is 32.8 g/mol, and the ideal gas constant is R = 8.314 J/(mol-K). The change in the entropy of the substance as it freezes is closest to A 870-g quantity of a substance is at its melting point of -117.9C in the liquid state. The heat of fusion of ethanol is 1.63 105 J/kg, the molecular mass is 32.8 g/mol, and the ideal gas constant is R = 8.314 J/(mol-K). The change in the entropy of the substance as it freezes is closest to