9. A certain ideal gas whose R= 278.6 J/kg.K and c, = 1.015kJ/kg.K expands isentropically from 1517 kPa, 288°Ć to 965kPa. For 454 g/s of this gas determine, (a) W, (b) V2, (c) AU and(g) ΔΗ.Ans. (a) 21.9 kJ/s; (b) 0.06495 m/s; (d) – 30.18 kJ/s

Given Data: R = 278.6 J/kg K = 0.2786 kJ/kg K Cp = 1.015 kJ/kg.K P1 = 1517 kPa T1 = 288℃ = 561 K…

9. A certain ideal gas whose R= 278.6 J/kg.Kand c = 1.015 kJ/kg.K expands isentropically from 1517 kPa, 288°Č to 965 kPa. For 454 g/s of this gas determine, (a) W, (b) V2, (c) AU and (g) ΔΗ. Ans. (a) 21.9 kJ/s; (b) 0.06495 m/s; (d) – 30.18 kJ/s

9. A certain ideal gas whose R= 278.6 J/kg.Kand c = 1.015 kJ/kg.K expands isentropically from 1517 kPa, 288°Č to 965 kPa. For 454 g/s of this gas determine, (a) W, (b) V2, (c) AU and (g) ΔΗ. Ans. (a) 21.9 kJ/s; (b) 0.06495 m/s; (d) – 30.18 kJ/s

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

9. A certain ideal gas whose R= 278.6 J/kg.K and c, = 1.015
kJ/kg.K expands isentropically from 1517 kPa, 288°Ć to 965
kPa. For 454 g/s of this gas determine, (a) W, (b) V2, (c) AU and
(g) ΔΗ.
Ans. (a) 21.9 kJ/s; (b) 0.06495 m/s; (d) – 30.18 kJ/s

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