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Sears and Zemansky's University Physics with Modern Physics | 13th Edition | ISBN: 9780321696861 | Authors: Hugh D. Young; Roger A. Freedman; A. Lewis Ford
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Solved: CALC You make tea with 0.250 kg of 85.0o C water

Chapter 20, Problem 26E

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QUESTION:

Problem 26E

CALC You make tea with 0.250 kg of 85.0o C water and let it cool to room temperature (20.0o C). (a) Calculate the entropy change of the water while it cools. (b) The cooling process is essentially isothermal for the air in your kitchen. Calculate the change in entropy of the air while the tea cools, assuming that all of the heat lost by the water goes into the air. What is the total entropy change of the system tea + air?

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QUESTION:

Problem 26E

CALC You make tea with 0.250 kg of 85.0o C water and let it cool to room temperature (20.0o C). (a) Calculate the entropy change of the water while it cools. (b) The cooling process is essentially isothermal for the air in your kitchen. Calculate the change in entropy of the air while the tea cools, assuming that all of the heat lost by the water goes into the air. What is the total entropy change of the system tea + air?

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Solution 26E

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