Question

Specific and Latent Heat Prelab: 1 100g of water is contained in a 300g aluminum container of 20' and an additional 200g of water on 100 to the container, determine the final temperature of the system. is added 2. In an insulated container, 300g of ice at an initial temperature of -5°C is added to 550g of water at an initial temperature of 20°С. Find: a) the final temperature of the system b) the amount of ice remaining (if any) 3. A person is making iced tea by brewing hot tea and adding ice until the tea cools. How much ice, at an initial temperature of -10°C, should be added to a 2.00x10 m glass of tea at 95.0°C to cool the tea to 10°C? Assume that the glass has negligible heat stored.

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Answer 1

cola boay 20% 1ade Hor ho Warn in= 100 Syeaifle heacalfyr Al contains, m 30 Specific heat, nO-215lr Heaat Jained bng (100x14300x0.21is) (E-20) Cola Heas est 7 200%17 (100- (164-5)(4-20) = 20000-200t 364.56 23290 63.90c is o heard 5e to elt ice Tre 2ninally'y 750a Heat enensyy eguied, A, = maat= 30c TO ice at 3a0x 80=4000at ed, ARmL 4eat en Enrgy eseaned on Cookina Watn on 26c98 availaide, uailebe Aleat enen 5501y 20 < 4,A A Q areiletie ence totnd ice deane tenea egilibium tempentue arailable melt Asenoo ca Totes thea AE aveible G 48,mL where ms icamr 7504mgo m 10250 128.125 mass ice melt, 300-128125 aemaint 71- 875 mas&ice hemaines, m

mass ice Let Specifie heat ice temp change -10cto o 4 10c Heat seqirr&, A ms At 5m cal 17 Heat gegaired to meltlce, A,mL 80 m Cal mAAt 10 mcal AG 95M eira toise temp 0 teat -7 totas theas egires, AS 3 mass a tea, -200009 m 2.00x10 x1020K Secitic heat Azgal/goe temperatune loes 85c (9500-10) 20000Ix85 1700000 cod availabie av - 1700000 O0c 7 895 Y 95 -17. 89S 1KoY mass ice eauird