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Get Full Access to University Physics - 13 Edition - Chapter 20 - Problem 26e
Get Full Access to University Physics - 13 Edition - Chapter 20 - Problem 26e

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# CALC You make tea with 0.250 kg of 85.0o C water and let

ISBN: 9780321675460 31

## Solution for problem 26E Chapter 20

University Physics | 13th Edition

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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?

Step-by-Step Solution:

Solution 26E Step 1 of 5: Given m = 0.250 kg c = 4190 J/kg.K 0 T 1 85 C = 358.2 K 0 T 2 20 C = 293.2 K T = T T = 293.2 358.2 = 65 K 2 1

Step 2 of 5

Step 3 of 5

##### ISBN: 9780321675460

The answer to “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?” is broken down into a number of easy to follow steps, and 82 words. Since the solution to 26E from 20 chapter was answered, more than 361 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 26E from chapter: 20 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This textbook survival guide was created for the textbook: University Physics, edition: 13. This full solution covers the following key subjects: air, Water, tea, change, entropy. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. University Physics was written by and is associated to the ISBN: 9780321675460.

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CALC You make tea with 0.250 kg of 85.0o C water and let