1. The problem statement, all variables and given/known data In an insulated vessel, 265 g of ice at 0°C is added to 630 g of water at 17.0°C. (Assume the latent heat of fusion of the water is 3.33 105 J/kg and the specific heat is 4 186 J/kg · °C.) a) What is the final temperature of the system? b) is already solved 2. Relevant equations 3. The attempt at a solution The answer is: Since the heat required to melt 265 g of ice at 0°C exceeds the heat required to cool 630 g of water from 17°C to 0°C, the final temperature of the system (water + ice) must be 0°C . I don't understand this. Is there a better explanation? I think maybe I just lack the knowledge of some sort of fundamental concept around this, because I don't know why this is.