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    Three ice cubes each of mass 25 g are dropped into a glass containing 330 g of water at a temperature of 22 °C. The ice is at 0 °C and melts so that the temperature of the water decreases.
    Calculate the final temperature of the water when all of the ice has melted. Assume that no heat is lost to the glass or the surroundings.
    specific latent heat of fusion of ice = 3.3 × 10^5 J kg^1 specific heat capacity of water = 4.2 × 10^3 J kg^1 K^1
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