Example 2.5 Consider a gas contained in a piston-cylinder assembly as the system. The gas is initially at a pressure of 1000 kPa and occupies a volume of 0.1 m". The gas is taken to the final state where pressure is equal to 200 kPa, by the following two different processes. (i) The volume of the gas inversely proportional to the pressure. (i) The process follows the path =constant, where n =1.4. Calculate the work done by the gas in each case.

Example 2.5 Consider a gas contained in a piston-cylinder assembly as the system. The gas is initially at a pressure of 1000 kPa and occupies a volume of 0.1 m". The gas is taken to the final state where pressure is equal to 200 kPa, by the following two different processes. (i) The volume of the gas inversely proportional to the pressure. (i) The process follows the path =constant, where n =1.4. Calculate the work done by the gas in each case.

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.

Question

15:01 M b P •
LTE l 43%.
Vol) LTE
Example 2.5 Consider a gas contained in a piston-cylinder assembly as the system. The gas is
initially at a pressure of 1000 kPa and occupies a volume of 0.1 m. The gas is taken
to the final state where pressure is equal to 200 kPa, by the following two different
processes
(i) The volume of the gas inversely proportional to the pressure.
(ii) The process follows the path =constant, where n =1.4.
Calculate the work done by the gas in each case.

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