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Steam is condensed at 100 °C and the water is cooled to 0 °C and frozen to ice. What is the molar entropy change of the water? Consider that the average specific heat of liquid water at constant pressure to be 4.2 J K-1 g-1, ?Hvap is 2258.1 J g-1 and ?Hmelt is 333.5 J g-1.

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