The entropy production or for nitrogen, an ideal gas, is 0.360 kJ/kg K when it is throttled from an initial pressure of 400 kPa. Determine (a) the final pressure, in kilopascals, to which the gas is throttled and (b) the ratio of the inlet to outlet area if the inlet and exit velocities are identical

The entropy production or for nitrogen, an ideal gas, is 0.360 kJ/kg K when it is throttled from an initial pressure of 400 kPa. Determine (a) the final pressure, in kilopascals, to which the gas is throttled and (b) the ratio of the inlet to outlet area if the inlet and exit velocities are identical

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

2-17. The entropy production or for nitrogen, an ideal gas, is 0.360 kJ/kg K when it is
throttled from an initial pressure of 400 kPa. Determine (a) the final pressure, in
kilopascals, to which the gas is throttled and (b) the ratio of the inlet to outlet area
if the inlet and exit velocities are identical.

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