P88#1. a perfect gas has a value of R=58.8 ft.lbf/lbm degree Rankine and K=1.26. if 20 Btu are added to 5lbm of this gas at constant volume when the initial temperature is 90degree farenheit, find (a)T2, (b) enthalphy, (c)entropy, (d)internal energy and (e) work for nonflow process. 1. A perfect gas has a value of R = 58.8 ft.ly/lbm R and K = 1.26. If 20 Btu are addedto 5 lbm of this gas at constant volume when the initial temperature is 90°F, find (a) T2, (b)AH, (c) AS, (d) AU, and (e) work for a nonflow process.Ans. (a) 563.8°R; (b) 25.27 Btu; (c) 0.036 Btu/ºR; (d) 20.06 Btu

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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P88#1. a perfect gas has a value of R=58.8 ft.lbf/lbm degree Rankine and K=1.26. if 20 Btu are added to 5lbm of this gas at constant volume when the initial temperature is 90degree farenheit, find (a)T2, (b) enthalphy, (c)entropy, (d)internal energy and (e) work for nonflow process.

1. A perfect gas has a value of R = 58.8 ft.ly/lbm R and K = 1.26. If 20 Btu are added
to 5 lbm of this gas at constant volume when the initial temperature is 90°F, find (a) T2, (b)
AH, (c) AS, (d) AU, and (e) work for a nonflow process.
Ans. (a) 563.8°R; (b) 25.27 Btu; (c) 0.036 Btu/ºR; (d) 20.06 Btu

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