An aluminum container whose mass is 205 g contains 300 g of water at 20C. In this container is then placed 250 g of iron at 150C and 20 g of ice at −10C. Find the final temperature of the mixture. The specific heat of aluminum and iron is 0.21 cal/g C and 0.11 cal/g C, respectively. The specific heat of ice is 0.50 cal/g C while its heat of fusion is 80 cal/g
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