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K. As the two objects are brought into contact ...... wo objects. If over a short interval of time Q=1 k) is transferred between the two objects without significantly changi What is the change of entropy of the hot object? Phot = J/K erefore, the entropy of the hot object Select- What is the change of entropy of the cold object? J/K = Pia efore, the entropy of the cold object Select-v

K. As the two objects are brought into contact ...... wo objects. If over a short interval of time Q=1 k) is transferred between the two objects without significantly changi What is the change of entropy of the hot object? Phot = J/K erefore, the entropy of the hot object Select- What is the change of entropy of the cold object? J/K = Pia efore, the entropy of the cold object Select-v

Elements Of Electromagnetics
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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MY NOTES Two objects A and B are initially at temperatures TA=350 K and Tg=175 K. As the two objects are brought into contact, energy in form of heat starts being transferred between the two objects, If over a short interval of time Q=1 kJ is transferred between the two objects without significantly changing their temperature, a) What is the change of entropy of the hot object? ASnot = J/K Therefore, the entropy of the hot object Select-v b) What is the change of entropy of the cold object? AScold = J/K Therefore, the entropy of the cold object Select--- c) What is the change of entropy of the combined system? AS = J/K Therefore, the entropy of the combined system -Select-- v d) Assume now that the two objects are embedded in a thermal bath at constant temperature, To=TA=TB=200 K. If the system undergoes a change of entropy equal to 34 3/K, what condition must the change of its internal energy satisfy in order for the process to be spontaneous? AUnt <
Transcribed Image Text:MY NOTES Two objects A and B are initially at temperatures TA=350 K and Tg=175 K. As the two objects are brought into contact, energy in form of heat starts being transferred between the two objects, If over a short interval of time Q=1 kJ is transferred between the two objects without significantly changing their temperature, a) What is the change of entropy of the hot object? ASnot = J/K Therefore, the entropy of the hot object Select-v b) What is the change of entropy of the cold object? AScold = J/K Therefore, the entropy of the cold object Select--- c) What is the change of entropy of the combined system? AS = J/K Therefore, the entropy of the combined system -Select-- v d) Assume now that the two objects are embedded in a thermal bath at constant temperature, To=TA=TB=200 K. If the system undergoes a change of entropy equal to 34 3/K, what condition must the change of its internal energy satisfy in order for the process to be spontaneous? AUnt <
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