A 0.50 kg copper ball and a 1.00 kg Iron block, both at 200 °C, were placed in 4 liters of mineral oil, at 20.0 °C, in a thermally isolated container. When the system reached thermal equilibrium, find (i) the final temperature of this system. (ii) the change of total internal energy of the system. (iii) the net change of the system entropy during the process. [Specific heats: mineral oil = 1.67 kJ/kg K, Cu = 387 J/kg K and Fe = 448 J/kg K]

A 0.50 kg copper ball and a 1.00 kg Iron block, both at 200 °C, were placed in 4 liters of mineral oil, at 20.0 °C, in a thermally isolated container. When the system reached thermal equilibrium, find (i) the final temperature of this system. (ii) the change of total internal energy of the system. (iii) the net change of the system entropy during the process. [Specific heats: mineral oil = 1.67 kJ/kg K, Cu = 387 J/kg K and Fe = 448 J/kg K]

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

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A 0.50 kg copper ball and a 1.00 kg Iron block, both at 200 °C, were placed in
4 liters of mineral oil, at 20.0 °C, in a thermally isolated container. When the
system reached thermal equilibrium, find
(i) the final temperature of this system.
(ii) the change of total internal energy of the system.
(iii) the net change of the system entropy during the process.
[Specific heats: mineral oil = 1.67 kJ/kg K, Cu = 387 J/kg K and Fe = 448
J/kg K]

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