Activity 3 Part 3 3A) Given: S'(NaCl, s) S°(Nat, aq) S°(CT, aq) = 72.1 J/(K mol)...
2) One of the reactions for today's class was the dissolution of solid sodium chloride. NaCl (s) = Nat (aq) + CI (aq) Use the data from the table to calculate: Substance NaCl (s) Nat (aq) ci" (aq) Hiº (kJ/mol) S (J/mol K) AG (kJ/mol) -411.2 72.13 -384.1 -239.66 60.25 -261.87 -167. 2 5 6.5 -131.2 229 66 1 A) AH RXN B) AS RXN C) AGⓇAXN D) The little circle which looks like the degree symbol (º) is used...
NaCl(s) ⇌ Na+(aq) + Cl-(aq) ΔHo = 3.9 kJ/mol At 298 K, a saturated solution of NaCl has [Na+] = 7.0 M and [Cl-] = 5.4 M. If the temperature of the mixture is increased to 323 K, what will be the equilibrium concentration (M) of Na+? (Assume no ion pairing.) Enter your answer to 2 decimal places. NaCl(s) Na (aq) + CI'(aq) AH- 3.9 kJ/mol At 298 K, a saturated solution of NaCI has [Na"] 7.0M and [CI] -...
P3D) Repeat the calculation in Problem P3D.4 for Lif, for which AHⓇ = 1037 k) mol in step 1 and with the following values of the absolute entropy. S (Lit) = 133 J K ' mol-', S (F") = 145JK-'mol"), S (LiF(s)) = 35.6JK-mol- (all data at 298 K). Use r(Lit) = 127 pm and r(F) = 163 pm. 206 From the Born equation derive an enrain A f.. 1 A P3D.4 The solubility of an ionic solid such as...
c is the reaction: Ca(s) + 2 H20(1) Ca(OH)2(aq) + 2H2(8) -285.83 -1002.82 AH °(kJ/mol) S°(J/K) mol 41.59 69.95 -74.5 130.7 AH° = -431.16 AS° = 5.41 AG° = -432.77 enthalpy favored Oneither enthalpy and entropy favored O entropy favored O both enthalpy and entropy favored Submit
10. Given the following table: Compound NO: (g) N:O (g) AHP (J mol) AGP (J mol) 51.84 33.85 9.66 98.29 For the reaction: N:Oa (g) eo 2NO: (g) (a) Use the information in the Table to calculate AG for the reaction (b) Use the information in the Table to calculate AH" for the reaction (c) Calculate K, at 25 C. (d) Calculate K, at 1600 °C. (Assume AH to be temperature independent) (e) Calculate the degree of dissociation, a, of...
JOY 20 $49.4 J/mol K -899.0 /mol K 7. According to the second law of thermodynamics, the change in the entropy of the universe (DS...) during a spontaneous reaction is a ero b negative positive. d less than the change in entropy of the system (DS.). greater than the change in entropy of the system (DS). 8. In an experiment, 1.000 mol of sodium metal is placed in a container and reacted with 4.000 mol of chlorine given the following....
2. For a given reaction, with AH° -19.9 kJ/mol and AS = -55.5 J/K mol at a temperature of 12 °C. Calculate the equilibrium constant. The Universal gas constant is 8.314 J.K'mol (25 points)
Using the standard entropy values: NOG), S = +210.6 J mol-1 K-1 02(0), sº = +205.0 J mol-1 K-1 NO2(g), sº = +240.5 J mol-1 K-1 calculate the standard entropy change, Asº, for the reaction: NO(g) + O2(g) NO2(g) A.-246.1 kJ B. +246.1 kJ C.-175.1 kJ D.-656.1 kJ E. -72.6 kJ
For a given reaction, Delta H = -19.9 kJ/mol and Delta S = -55.5 J/K-mol. Calculate the temperature in K where Delta G = 0. Assume that Delta H and Delta S do not vary with temperature. Also, what is the equilibrium constant at that temperature?
The standard entropy change for the reaction 302() 203() is -137.2 J/K mol at 298 K and 1 bar. Calculate the value of AS rx at 460 K, assuming that all values are independent of temperature. [ACP,ran for this reaction is -9.8 kJ/K mol).] Г ЈК - mol