A block of ice weighing 20 gm, at -10oC is mixed with 100 gm water at 10oC, in an insulated flask. What is the amount of water, in the flask, when equilibrium is reached?
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Solution
Heat required to raise the temp. of ice to 0oC=20×0.5×10=100cal
Heat supplied by water coming to 0oC=100×1×10=1000cal