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Hot tea (water) of mass 0.21 kg and temperature 62 ∘C is contained in a glass...

Hot tea (water) of mass 0.21 kg and temperature 62 ∘C is contained in a glass of mass 200 g that is initially at the same temperature. You cool the tea by dropping in ice cubes out of the freezer that are at a temperature of – 11 ∘C. What is the minimum amount of ice in you need to make ice tea (final temperature of 0∘C)? Give your answer in kg to two decimal places. The specific heat of ice is 2200 J/kg ∘C, the specific heat of glass is 840 J/kg ∘C and the specific heat of water is 4186 J/kg ∘C. The latent heat of fusion of ice is 334000 J/kg ∘C.

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