The optimum drinking temperature for a Shiraz is 15.0 C . A certain bottle of Shiraz having a heat capacity of 3.40 kJC1 is 23.1 C at room temperature. The heat of fusion of ice is 6.02 kJmol1 and the heat capacity of ice is 2.108 Jg1C1 . Assume that no heat is lost to the rest of the surroundings. What minimum mass of ice, originally at -3.0 C , is required to bring the final temperature to 15.0 C