3.105 - PROGUEM 1105 100me NHvoqen 74.5 undergoes a...

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Unformatted text preview: PROGUEM 1105* 100me NHvoqen 74.5 undergoes a. Poltd‘h’opic expamsfam fvx 0L Pa3‘l‘on-cghhder assemblfl. Ewg‘. Eekrmme -H«e herd +nmsf’er usuhg (a) amshzwl- Specihé hed- emlum‘ed at 300K) (b) Comm specific head~ evawwd-edauf 700K ,amd (e) nH-r‘ogem +ables. SCHEMflTlC 2 Gwen mm: AssumprtoNs :(nThe nih-ogen is aclesed sysfem. (2) The nH-rogen behaves as an ideal gas. (3) We proeecs i: polgfropie,wi+k n =I.3.(I+) Kind-(c «mot Polenfiz! energy fluted: are neg name. ANALYSIS : Flirt, The work is evaluated form polgmie Process . wm’. assumpi-(on (2), 545. 3.56 amd 5,57 applfl T2 :(333- )‘bii‘lr‘ = (é) (.3/b3) 1’: (700K) = 566.6k a’md 3.3m 1:: w = 1m «(n-T.) = (1 k3) (2.3m gynae—woxk "—"“_V\ Ll-i-33 ~ [32 RF To deJrerm‘Dse we keod- mm”, use am enema balance 0? Q = Y‘all/(run +w (a) me TableA—xo at 300K, Gu- 30.793 KT/kg- K. Thus Q = we, CTt—T. ) +w = Q I49)(o.7q3 IJ/f‘g-ncsc 566.6-7003k 1-(132 kT) : 32.881cT‘—_______________________M€2 (b) Pram TaloleA—zo at‘MOK, Ca- : 0x301 'kJ/kg-k. Thus Q = (009.301 ”some—700) +(132) = 7.5.15 («Id—m.....__Q.___€.b.) (C) Using Values {or 21 4mm Table A-23 a = w W) + w («1,850 “Nina” kT/kmot : l k G ( a) (28.0! ltfl/kMO‘ 3 : 2.7.25 k3- Q (o) + 132. k? l. TM approack a“; pa.rf(€) expire-Hiacwwu'fi for NH VWNfiVn 0+ $1799.62 heu- CV (pH-k «temperamre. ’ L ...
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