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10 kg of water at 20 degrees C converted to ice at -10 degrees C by being put in contact with a reservoir at -10 degrees C. This process takes place at constant pressure and the heat capacities at constant pressure of water and ice are 4180 and 2090 J/kg deg respectively. The heat of fusion of ice is 3.34x10^5 J/kg. Calculate the change in entropy in the universe.

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