**Calculating ΔS° at 298 K for a Chemical Reaction**This section explains how to determine the standard entropy change (ΔS°) at 298 K for the following chemical reaction:\[ \text{Fe}_2\text{O}_3(s) + 3\text{CO}(g) \rightarrow 3\text{CO}_2(g) + 2\text{Fe}(s) \]The table below provides the standard Gibbs free energy of formation (ΔG°f) and standard enthalpy of formation (ΔH°f) in kilojoules per mole (kJ/mol) for each substance involved in the reaction:| Substance | ΔG°f (kJ/mol) | ΔH°f (kJ/mol) ||-------------|---------------|---------------|| Fe₂O₃(s) | -741.0 | -822.2 || CO(g) | -137.2 | -110.5 || CO₂(g) | -394.4 | -393.5 |To calculate ΔS°, use the formula relating Gibbs free energy, enthalpy, and entropy:\[ ΔG° = ΔH° - TΔS° \]where \( ΔG° \) is the standard Gibbs free energy change, \( ΔH° \) is the standard enthalpy change, and \( T \) is the temperature in Kelvin.By calculating these thermodynamic values for the entire reaction, we can determine the change in entropy (ΔS°) at the specified temperature.

Answered: Image /qna-images/answer/48f9ec08-0b36-4410-bbd2-e0e40b1ae68f.jpg

Answered: What is AS at 298 K for the following…

What is AS at 298 K for the following reaction? Fe2O3(s) + 3CO(g) - 3CO2(g) + 2Fe(s) Substance AGf(kJ/mol) AHf(kJ/mol) Fe2O3(s) CO(g) CO2(g) -741.0 -137.2 -394.4 -822.2 -110.5 -393.5

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Predict whether AS for each reaction would be greater than zero, less than zero, or too close to zero to decide. Clear All H2(g) + F2(g)- →2HF(g) →2NO(g) + Br2(g) 2NOBr(g)- AS > 0 CO2(g) + H2(g)- + H20(g) →CO(g) AS < 0 2CO2(g) + 5H2(g)- C,H2(g) + 4H,0(g) too close to decide 2H2021)2H,0(1) + 02(g)
Calculate AS for NH3(g). AS = i Use data in the table below: Substance Ag(s) AgCl(s) Al(s) Al₂O3(s) C(s) (graphite) CO(g) CO₂(g) CH₂(g) CH₂Cl(g) CH₂OH(1) C₂H₂(g) C₂H₂(g) C₂H6(g) CgH 18(1) C₂H₂OH(1) Standard Entropies of Some Typical Substances at 298.15 K Sᵒ (J mol-¹ K-¹) 40 76.1 Ca(s) CaCO3(s) SaCl₂(s) Sº (J mol-¹ K-¹) 42.55 96.2 28.3 51.0 186.2 234.2 126.8 CO(NH2)2(s) 104.6 CO(NH,)2(aq) 173.8 200.8 219.8 229.5 466.9 161 5.69 197.9 213.6 41.4 92.9 114 JK-1 Substance CaO(s) Ca(OH)₂ (s) CaSO4(s) 107 CaSO4+H₂O(s) 131 CaSO4-2H₂O(s) 194.0 223.0 27 90.0 130.6 188.7 Cl₂(g) Fe(s) Fe₂O3(s) H₂(g) H₂O(g) H₂O(l) HCI(g) HNO3(1) H₂SO4(1) HC,H,O,(D) Hg(1) Hg(g) K(s) KCl(s) K₂SO4(s) 69.96 186.7 155.6 157 160 76.1 175 64.18 82.59 176 Substance N₂(g) NH3(g) NH₂Cl(s) NO(g) NO₂(g) N₂O(g) N₂O4(g) Na(s) Na₂CO3(s) NaHCO3(s) NaCl(s) NaOH(s) Na₂SO4(s) 0₂(8) PbO(s) S(s) SO₂(g) SO3(g) Sº (J mol-¹ K-¹) 191.5 192.5 94.6 210.6 240.5 220.0 304 51.0 136 102 72.38 64.18 149.4 205.0 67.8 31.9 248.5 256.2
Determine the sign of AS for each of the following: I. C6H6(s) II. 2 SO2(g) + O2(g) → 2 SO3(g) A) AS should be positive for I and positive for II. B) AS should be negative for I and positive for II. C) AS should be positive for I and negative for II. D) AS should be negative for I and negative for II.
17
Predict whether AS for each reaction would be greater than zero, less than zero, or too close to zero to decide. H₂(g) + Cl₂ (g) → 2HCl(g) COC12 (g) → CO(g) + Cl₂(g) CO2(g)+H2(g) → CO(g) +H,O(g) 2CO2 (g) + 5H2(g) → C₂H₂(g) + 4H₂O(g) 2H₂O(1)→ 2H₂(g) + O₂(g) Show Hint Clear All AS > 0 AS <0 too close to decide Previous Email Instructor Next Save and
14) Predict the sign of AS for each process. A) H20G) → H2O(1) B) Solid carbon dioxide sublimes C) 2 N20(g) → 2 N2g) + O2(g)
What is A-G° in unit of kJ at 298 K for the following reaction? Zn(s) + H20(g) ZnO(s) + H2(g) Substance AH (kJ/mol-rxn) at 298 K S (J/K mol-rxn) at 298 K Zn(s) 46 H20(g) -241.8 188.7 ZnO(s) H2g) -337.1 42.6 130.6 Please keep your answer to one decimal place.
3.
Determine the sign of AS for the following process. Liquid water at room temperature is placed in a freezer H2O (1) → H2O (s) A. O positive B. O negative
19 Thermodynamic Quantities for Selected Substances at 298.15 K (25°C) AHf AGf AS° AHf (kJ/mol) AGf (kJ/mol) AS° Substance (kJ/mol) (kJ/mol) (J/mol-K) Substance (J/mol-K) Aluminum Chlorine CI (g) C (аq) Cl2 (g) HCI (aq) HCI (g) Chromium Al (s) AIC13 (s) 28.32 121.7 105,7 - 131,2 165.2 - 705.6 - 630.0 109.3 - 167.2 56.5 Al203 (s) - 1669.8 1576.5 51.00 222,96 - 131.2 -95.27 - 167.2 56.5 186,69 Barium - - Ba(s) BaCO3(s) BaO(s) Beryllium Be(s) 63.2 -92.30 - 1216,3 - 553.5 - 1137.6 112.1 Cr (g) Cr (s) Cr203 (s) Cobalt Со (g) Copper Cu (s) CuCl2 (s) CuO (s) - 525.1 70.42 397.5 352.6 174.2 23.6 9.44 - 1139.7 - 1058.1 81.2 BeO(s) Be(ОН)2(8) 13.77 50.21 - 608.4 -579,1 - 817.9 - 905.8 439 393 179 Bromine 111.8 - 120.9 Br(g) Br-(aq) Br2(g) Br2(1) HBr(g) Calcium Ca(g) Ca(s) CaCO3 (s, calcite) CaCl2(s) CaF2(s) CaO(s) Ca(OH)2(s) CaSO4(s) 82.38 174.9 33.30 108.1 - 102.8 - 167,7 - 128,3 - 147.9 80.71 - 205.9 30,71 3.14 245.3 - 156,1 42,59 - Cu20 (s) Fluorine F (g) F- (aq) F2 (g) HF (g) Hydrogen 152.3…
Substance H₂O20) H₂Om O2(g) Determine AG at 298K for 2H₂O2(0) --→ 2H₂O + O2(g) given So (J/mol K) AH (kJ/mol) -187.78 -285.83 0 109.6 69.91 205.14
I need help with this thank you