. You make tea with 0.250 kg of 85.0 °C water and let it cool to room temperature (20°C) before drinking it. (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 the heat lost by the water goes into the air. (c) What is the total entropy change of the system tea + air?

. You make tea with 0.250 kg of 85.0 °C water and let it cool to room temperature (20°C) before drinking it. (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 the heat lost by the water goes into the air. (c) What is the total entropy change of the system tea + air?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter4: The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 4.7CYU: Check Your Understanding A 50-g copper piece at a temperature of 20 is placed into a large...

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