prob7_14soln - I i I l I E t i 7.14 Determine the specific...

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Unformatted text preview: I . i I l I E t i 7.14 Determine the specific exergy, in Btu, of one pound mass of (a) saturated water vapor at 212°F. (b) saturated liquid water at 40°F. (c) ammonia at —40°F, 6 lbf/in.2. In each case, consider a fixed mass at rest and zero eleva— g tion relative to an exergy reference environment for which g T0 = 70°F, p0 = 14.7 lbf/in.2. s l i Samar”; E 2 L<U+imvz+m¢f£> ' Uh.) 4? 5% (V‘Jvlo) ,T;(5-S¢> E E i 696597» exergy: 5%:wa = [bk *i/g‘Lfi’u‘D] 4’ Po (V’W)’ T569139) { 0 (res-5’) 0 (no atom-Bo n> , t i Use “Data Shit" it"; 70°F mi 3447 F5: +5 QM We! “amt 53min" L “éflrzkfixj cmpesstg flrfiuic‘i" 50 U5r?- ' soci'urod'cd flféuid wJZvcs «'5' 70°F (AD 2‘: “43 (70°F) : 53,07 [5414/15 medias —>* up ,vg, a A . 15:315.; (70°F) : .ozaos 145/12; 4:3 A? (70°F :. ,07463 gw/XVK For (at) a (b) Hp sTO ‘FMC‘ “Orig/Md” (wowetumtn‘wa)mex‘h‘es v-‘P wry“; 2: A, usc We “5cm” shit: (Q seer VAFN H20 fir 29°F aw M {219343 (b) 500? 11‘3"“ ”LO ”1“ 40°F ”PM “Mike I Part (a): Ammanfa. 2 Use. saw/Mom sharegy {wt yaw 5’40“:l 9AA”- Demt Si—MC. ('5: ‘{()‘F3 :1: = 1471») Ammonia 3s sneerMod'ect VAPW' IMUWQML +0 89% 1A,, v; i A, “Orw‘vjfimi” 5553*. (T: '400F a P: [1954)Avnmwiou is also éulwkmicci vaFa-r (no mWPvah‘m ragweed“) an} (A) ”T {A ...
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