In an experiment, a certain amount of air is heated at constant pressure from 1.7 m, 28 °C and 97 kPa to 421 C. It is then cooled at constant volume back to its initial temperature. Calculate the change specific entropy in the constant pressure process in the correct unit in Sl and 1 decimal place. Take Specific heat at constant pressure and constant volume for air as 1.006 kJ/kg K and 0.718 kJ/kg K respectively. Add unit. 1 decimal place.

In an experiment, a certain amount of air is heated at constant pressure from 1.7 m, 28 °C and 97 kPa to 421 C. It is then cooled at constant volume back to its initial temperature. Calculate the change specific entropy in the constant pressure process in the correct unit in Sl and 1 decimal place. Take Specific heat at constant pressure and constant volume for air as 1.006 kJ/kg K and 0.718 kJ/kg K respectively. Add unit. 1 decimal place.

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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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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