fall 09 exam 2 - 1 . 1.”?5 m {Themifiiry 332] Physical...

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Unformatted text preview: 1 . 1.”?5 m {Themifiiry 332] Physical Chemistry I Exam #2 Tim-ember :5. 3110‘? Karma R = 3.3 l4 .E.-"nm]—K —f}.{182]..—mm‘nm]-K WORK ANY :1 0F THE FULLGWINU 5 WHEEL-EMS. CIRCLE TE-IOSF. Yfl ‘u‘n-T'JIILD LIKE GRAIJ'EJJ. IF YOU DU NUI' CIRCLE 4 PROBLEMS THE FIRST 4 1|NILI. H175 Fill-HJED. ("ulculatc flH. mm]. and ASH.,.L.”.M..LB‘ th‘n lhc mlumc nt' 13 g nHHJig} iI'ni1L1'u1E15,r al 298 K and 1 .flfl hur incruzst by :1 fiwwr of l'nur in {a} :m adiabatic reversible uxpanfiiun, {h} {m cxpunsinn against 1"“le -' fl. and {c} m: imthcrnml ruwraihlu cxpmmiuu. 'l‘aku [1min In: unnslum an ill: vatuu 29.14 .1 mnT'K" and assume iiicai gels hchuvinr. State whether uach primfifis iH glmnlmmnus. l'hc turnprrulun: nt' lhu: surmumiinga E3: 2% K. 1 m _' i am : 0 50 [583-31.- hi‘q " D Ag%_ 0 im revetmle 5'3 13:52am: 6 $ 2. Using this expressions for the mmhincd First and Second Law and Maxwell's rslatimlships show that K ‘* ' r“. ' LUEJT] Zuni} _J” PM! I. k 533'" _,, mm’ “Ear-I“ m' .____ = r..'_ ____ [ :34“ El"? U 3U E}? gv—r H V MEL “1% 3. [Ionaider 11w equilibrium [30(3) 1- Hgflfg} éfflfigj + {Mg}. m lflflfl. K, the unmposittnn nfflm rcactim‘n mimure is fillthfiflfifl {EH g a I {3;} _ LTD; g1 Hfli g I Milk-2 '34: 2?.T 21] 22.9 22.9 hI-IflfikJmmH 2193.5 fl —] “LS {141.3 (a) [Taluulalc K1: and EEG“ fl‘rr the rcatlinn at man. K. [h] ("zflculnte xiii" for the rumtiun at 393. K assuming fisH“ is. indflpcndunl {1F tcmpm'auu'u. *9 — M2, mug) 4‘ 'NKKWLQ *' 5‘49; W‘?) + m; Lacmg‘; = 410.5 «mm: +3133 fi—HL'L‘r—E -‘ *5 L1H 4. You have a tissue specimen that you wmfld like tu presewe by freeze- drying. Te ensure 1he integrity ed'The specimen. the tempersiure Shflllid net eseeed 43.110 C. The vspur pressure of ice at 279.16 K is fill Fe; aHfi-uim — fifli Miami and Mr'mpsrimnm — 4E}.fi5fi ILL-“moi. What is the maximum pressure at which [he Freeze drying earl be carried out? ' n a i ‘ Llfi balk“: 5H0“, + BAM' {pm a. Lmlpbe Quflg I Lb For a? #13331“ e=~'— I‘D Ia fisI-Jé'h p‘ Iii. In. fax-IA T: * 212:5 as #1111. 3 t L.- _. _ .- __.—-—-"| '— H- T : ‘ gel—u; 11:05 3-13: 0?}. <33” 5. By nmssuring tin: squiiihrium her-wen liquid and vapm phssss of an acetone {A} — sthsnnJUi} sniutiun at 5?.2 C at 1.{]t} 31:11 it was {mind that K; = UAW and 1m = {1.51:1 Calculsts the activities and activity mmifisisnts for both companems in this solution mt the Rsuuit's law basis. Thc t-‘spflrr pressure 01" pun: comps-Hem at this tsmperstttrr: are: pf — T36 inn and p;_-* — 55] anr. Ex,-H is the melt: tisstiun in the liquid and 5.31. the mule 1' rsstiun in the vspurJ 19h: \{J’fi =©5u®®¢t§> ; 31,133 sm— 1% ...
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This note was uploaded on 01/27/2010 for the course CHEM 3321 taught by Professor Goux during the Fall '09 term at University of Texas at Dallas, Richardson.

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fall 09 exam 2 - 1 . 1.”?5 m {Themifiiry 332] Physical...

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