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Unformatted text preview: expected for the experiment #11 were as follows: H 2 O ( s ) + 80 cal/g ---------> H 2 O ( l ) The energy absorbed during the melting process is used to separate the molecules of the solid and NOT to raise the temperature. 2. A metal spoon, initially at 25 C, is placed in an insulated cup containing water and crushed ice. After the system has come to thermal equilibrium, there is still some ice remaining . a) What is the equilibrium temperature of the metal spoon? EXPLAIN! b) What happened to the energy given off by the metal spoon? c) If 5.0 grams of ice were melted, how much energy was given up by the spoon? 3. What amount of ice must be added to cool 250 grams (mL) of water from 25 C to 0 C and have NO ice remain?...
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