You are mixing 35 grams of water at 15 ◦C with 68 grams of water at 75 ◦C. Assuming there is no heat loss to the environment, (a) determine the final equilibrium temperature. (b) what is the change of the whole system’s entropy after it reaches thermal equilibrium?

You are mixing 35 grams of water at 15 ◦C with 68 grams of water at 75 ◦C. Assuming there is no heat loss to the environment, (a) determine the final equilibrium temperature. (b) what is the change of the whole system’s entropy after it reaches thermal equilibrium?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter4: The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 76AP: Suppose 20 g of ice at 0 is added to 300 g of water at 60 . What is the total change in entropy of...

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Question

You are mixing 35 grams of water at 15 ◦C with 68 grams of water at 75 ◦C.
Assuming there is no heat loss to the environment,
(a) determine the final equilibrium temperature.
(b) what is the change of the whole system’s entropy after it reaches thermal
equilibrium?

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