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0.7 kg of ice at 0 ◦C and 3 kg of water at Ti are brought...

0.7 kg of ice at 0 ◦C and 3 kg of water at Ti are brought into thermal contact in an iso- lated container. All the ice melts, and the mixture reaches an equilibrium temperature of 10 ◦C.

(a) (5 points) Determine the initial temperature Ti of the liquid water.

(b) (1 point) Determine the entropy change ∆S_melt associated with this amount of ice melting.

(c) (3 points) Determine the entropy change ∆S_coolwater associated with the decreasing temperature of the water. (Hint: find an expression for dQ in terms of dT.)

(d) (2 points) Determine the entropy change ∆S_warmwater associated with the increasing temperature of the melted ice.

(e) (2 points) Determine the net entropy change associated with this thermal process. Explain whether your result obeys the Second Law of Thermodynamics.

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Expert Solution

genius_generous answered 2 years ago
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