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Quiz2sol - Quiz 2 Solution 6.1 The systeminthisprohlem...

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Unformatted text preview: Quiz 2 Solution 6.1 The systeminthisprohlem is2.000 male of liquid dimethyl ether (CI-130013) whose normal boiling point 15—243 “C. The liquid is inserted into a fi‘ictionless pistonthat is immersed in a largethermalbathat25.00°Candtheliquidqnicklyevaporates. Aconstantextemalpresmeof one atomospherewas applied onthe piston during the evaporation process. THERMODYNAMIC DATA AT 25.00 °C ME MI!) W AHflkJ/mole) 403.50 484.00 :21) Using the data at 25.00 ”C below, calculate the following quantities for the vaporization process: the heat (q), the work (w), and the change in energy (Al-3). Qroqegg Gaul/e, (2:? conga/nt- priciest/l"; 50 :- H 9/9,:AAH: n [AHp ”(W5MH3)9B*AH; (Cltfifll (a) = a (/—- (at ILJ/molcfi- (-J’fibmmo '3 )7: m ': —,€Tn ‘ w: +1 Al/LPCVK wow—PW T'— “EMO063-3M5 imné)(gqgr/57§g :- “#458,83— AE :6],+w= 54.0%: 6.14. A calorimeter is used to measure the heat of formation for the following reaction: Ba2+ (aq) + S042"(aq) —> BaSO4(s) The calorimeter consists of a liquid that requires 40.0 Joules to change the temperature of 20 grams of the liquid by 1°C. When the reaction was carried out at constant pressure in a vessel containing 100 grams of the liquid, the calorimeter temperature increased by 10°C. a) Find the specific heat capacity of the liquid (per gram of liquid). b) Find the heat of reaction for the formation of BaSO4(s)in Joules. ‘1') l+£¢+‘ ccfma‘i—rj +5.15. we, keep “Much. flflkj £3 ”Edda! +9 M05"- e gawk (room “£er a. fiim awmnlr 5% H“ lift: kWr-fl_ Welfare, ’HnL has!» cap? ' 4'9 erLj > .. FLO-OT -::' ‘p 1 Mat-'5 of; Jag-PL {5:23 C’ (Vt L) T14 kept- pt— Hitachi-hm 1‘s aMFH «H.4— +ohzl hair a: - - +£4- . 5°?“G‘l'j [chi—cabamc.) X. ME, wt W C'- nr Twat = (953% WWW”) aim-TE Nari-E: ——+ HGT' 1116‘ norm firfifirmvkwa ...
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