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A polytripic process of air from 150 psia, 300 deg F, and 1 ft occurs to P2 = 20 psia. The process has a polytropic index of 1.3 . Prove that: a. t2 = 17.4 deg F and 4.711 cu. ft;

A polytripic process of air from 150 psia, 300 deg F, and 1 ft occurs to P2 = 20 psia. The process has a polytropic index of 1.3 . Prove that: a. t2 = 17.4 deg F and 4.711 cu. ft;

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
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7. A polytripic process of air from 150 psia, 300 deg F, and 1 ft3 occurs to P2 = 20 psia. The process has a polytropic index of 1.3 . Prove that: a. t2 = 17.4 deg F and 4.711 cu. ft; b. - du = 25.81 BTU, - dH = 36.14 BTU, and dS = 0.0141 BTU/R ; c. SpdV = 34. 41 BTU and -S pdV = 44. 73 BTU ; and d. Ws = 44.73 BTU for dKE = 0.
Transcribed Image Text:7. A polytripic process of air from 150 psia, 300 deg F, and 1 ft3 occurs to P2 = 20 psia. The process has a polytropic index of 1.3 . Prove that: a. t2 = 17.4 deg F and 4.711 cu. ft; b. - du = 25.81 BTU, - dH = 36.14 BTU, and dS = 0.0141 BTU/R ; c. SpdV = 34. 41 BTU and -S pdV = 44. 73 BTU ; and d. Ws = 44.73 BTU for dKE = 0.
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