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ex 4a - Ex 4a A closed system containing 0.2 lbmol of air...

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Unformatted text preview: Ex 4a A closed system containing 0.2 lbmol of air undergoes a polytropic process from p1 = 20 Ibf/in2 and U1 =2 11.5 fta/Ib to a final state p2 = 80 Hat/in2 and 02 = 3.98 ftg/lb. Determine the energy transfer by work for the process. ,. i .2. Em”? s We: K. a f the p, ”fist- D t r r {it «' h : a 1 WM E P I I , . “Wm “N?“ ufqfl’q t Pt ‘3 72’0 ”fig/ml) m1 3 A19 F! 213 - .2 ' TEL“; an, _. m. } {'th ‘fiGHfl‘g/Mi) ’0‘; ghfi {1‘ it) “$.53 “U sh) \ I ‘ fiyafie‘m t“; £36594 ,5 UL? (Le/C3 m “’ H we? as atecteslt‘iafm-“j "I f w»- (as v ‘- M W ‘ ag3ufmf7‘ttra'm3 .' jcéeai f} 015 (as ism-sway“ A =F04}5 tray-m ft'ucflSfi, if} ‘if s wiiiif . w my; PV-n r pamd‘ :37 E) "2 {JV eczmuitifiyt‘s 2‘. at L‘ any; 3—“ Riva}; 9%ch cams”? MQSB Vi “PW-swmt =7 My“: Psys ":7 lv s sass as s: a - p s “a t .3 s s f: s s 14322:: J t “3’; “‘ ‘3 '3' W -.... m, ‘1‘; ; in w a P w . .7 . :4 MW 63-}; L 1 W} Fa ”WM, W‘ (Effie/fl fi‘fi‘s‘) ru— :— 32. ‘ Mm . W I sis (is sssstsiisy ay/sss‘) i~_-7sis ii, . Mn}. 2 6m ...
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