1Kg of Air is compressed in a piston-cylinder device from 82 kPa and 20C to 667 kPa Pisothermally. What is the work done ku 120.77- La kJ 109.45-b O KJ 194.31-.CO ku 176.26- .d O
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- 2.) Two bodies A and B with constant total heat capacities Cen and Cpe and chfferent imitial tom pevatu res Tao heat witu each other wncer is bleeric and TB, exchange condiitions. No heat is trausfered to or from the Surran dings and the tomp. 6f both bodies are assured Uniform at all times aud the process is ireversible. a) Derive an expression for dhe total entropy chauge of the finotion of temp. tuo losdies as a 6) what is The eguililoviuus temp. of the systeen?The value of trangle H for the decompisition..b.The molar heat capacity of white tin (Sngwhite)) Varies with temperature as follows: 80 T/K 20 |Ca/JK" | 30 | 40 60 198 249 274 289 1.970 | 5.460| 9.387 | 15.33 | 19.49 | 26.17 | 26.71 26.84 26.88 Calculate AG from grey/white tin transformation at 298 K [Given: S3s6agrwy) = 38.77 J K' AH(s«pey) →s«nh#e) = 2234 J]
- b.The molar heat capacity of white tin (Snwhite) Varies with temperature as follows: 30 40 60 | 5.460 9.387 | 15.33 | 19.49 26.17 26.71 T/K 20 80 198 249 274 289 Cam/JK" 1.970 26.84 26.88 Calculate AG from grey/white tin transformation at 298 K (Given: Sywsm pry = 38.77 J K' AHsaey) Satwhae) = 2234 J]%99 ll1. Joule-Thomson Effect is a good -5 approximation of an a- Isothermal process b- Adiabatic process c- Isochoric process d- isenthalpic process A gas that behaves ideally has a -5 density of 1.92 g dm-3 at 150 kPa and 298 K. What is the molar mass of the ?sample a- 31.7 g/mol b- 62.4 g/mol c- 78 g/mol d- 82 g/mol Q2/ A/ Write a brief answer of the following questions II >9. Calculate the Go in kJ/mol. 3Fe2+ (s) + 2Cr(aq) ⟶2Cr3+(aq) + 3Fe (s); Eocell=0.30 V Group of answer choices -170 +170 +87 +58 -195 10. Calculate Ecell in volts. Zn(s)|Zn2+(2.50x10-4M)||Sn2+(1.50M)|Sn(s) Eocell=+0.624 V Group of answer choices 0.736 0.635 0.512 0.848 no correct answer
- 3. Using the truncated viral equation of state given below, nRT n° RTB(T) P = V .(a) Calculate the amount of work done as 500 mol of acetone (g) is compressed isothermally from 500 to 2.00 dm at 363 K with B(T) = B(363 K) =-874 cm³ mol-'. (b) Next, calculate the same isothermal compression, however, in this case for 500 mol of neon (g) at 363 K whose second Virial coefficient is B(T) = B(363 K) = 12.1 cm³ mol-. (c) Finally, compare and contrast these two values of compressive work (wompresion). Speculate on why acetones result comes out the way that it does; i.e., what molecular or chemical rationale can explain its result.! ks.com/alekscgi/x/isl.exe/10_u-IgNsikr7j8P3jH-lvTqeviKFP6W0cqJcWJdIACROQwyw24GWHincZmhbV1r7xxVznmsVfiHPir7w bbs Free E... 5.3 Enthalpies of... 18.5 Gibbs Free E... Reading Schedule 19.6 Reduction Po... SOLUTION: The le... 1 E Q Kinet O ELECTROCHEMISTRY Calculating the mass of an electrolysis product from the applied... 0 @2 Suppose a current of 0.630 A is passed through an electroplating cell with an aqueous solution of Ag₂SO4 in the cathode compartment for 28.0 seconds. Calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. In essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. Explanation W Lectu # 3 Check E 54 0.0 X R…#4 please