a. What is the maximum work that can be obtained frome this isothermal heat transfer? b. What is the amount of heat that regected to the surrounding? c. What is the entropy change of the two reservoirs? d. What is the total entropy change? Ans: a. 625 kJ b. 375 kJ c.-1.2, 1.25KJ/k d. zero

a. What is the maximum work that can be obtained frome this isothermal heat transfer? b. What is the amount of heat that regected to the surrounding? c. What is the entropy change of the two reservoirs? d. What is the total entropy change? Ans: a. 625 kJ b. 375 kJ c.-1.2, 1.25KJ/k d. zero

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

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Q3. 1000 kJ of heat are transferred irreversibly and isothermally at atemperature of 800 K.
The temperature of surrounding is 300 K.
a. What is the maximum work that can be obtained frome this isothermal heat transfer?
b. What is the amount of heat that regected to the surrounding?
c. What is the entropy change of the two reservoirs?
d. What is the total entropy change? Ans: a. 625 kJ b. 375 kJ c.-1.2, 1.25KJ/k d. zero

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