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Calculating change in Entropy as ice melts on kitchen table P 3-10
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An Introduction to Thermal Physics
Daniel V. Schroeder
Problem 3-10
An ice cube (mass 30 g) at0◦C is left sitting on the kitchen table, where it gradually melts.
The temperature of the kitchen is 25◦C.
(a) How much heat is absorbed by the ice cube as it melts into water at 0◦C?
(b) Calculate the change in the entropy of the ice cube during this process.
(c) Calculate the change in the entropy of the kitchen during this process.
(d) Discuss how your answers to parts (b) and (c) compare, and how this relates to the
Second Law of Thermodynamics.
Daniel V. Schroeder
Problem 3-10
An ice cube (mass 30 g) at0◦C is left sitting on the kitchen table, where it gradually melts.
The temperature of the kitchen is 25◦C.
(a) How much heat is absorbed by the ice cube as it melts into water at 0◦C?
(b) Calculate the change in the entropy of the ice cube during this process.
(c) Calculate the change in the entropy of the kitchen during this process.
(d) Discuss how your answers to parts (b) and (c) compare, and how this relates to the
Second Law of Thermodynamics.
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