Answered: steam initially at 200 kPa and 3000C.…

steam initially at 200 kPa and 3000C. The steam is now cooled while being stirred until its volume drops to half its initial value (i.e. V2 = V1/2). Determine the entropy

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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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.

Question

A piston-cylinder device contains 5 kg of superheated
steam initially at 200 kPa and 3000C. The steam is now
cooled while being stirred until its volume drops to half
its initial value (i.e. V2 = V1/2). Determine the entropy
change of the steam during this process.

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