Fe,O; (s) + 2Al (s) → Al,O; (s) + 2 Fe (s) a. Is the reaction spontaneous at room temperature under standard conditions? During the reaction, the surroundings absorb 851.8 kJ/mol of heat. HINT: Calculating ASuniv is necessary to answer the question: AS, AS. I surr + %3D univ sys T AS, = EVAS98 (products) – EVAS 298 (reactants) %3D sys

Fe,O; (s) + 2Al (s) → Al,O; (s) + 2 Fe (s) a. Is the reaction spontaneous at room temperature under standard conditions? During the reaction, the surroundings absorb 851.8 kJ/mol of heat. HINT: Calculating ASuniv is necessary to answer the question: AS, AS. I surr + %3D univ sys T AS, = EVAS98 (products) – EVAS 298 (reactants) %3D sys

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...

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For a certain equilibrium reaction, the following data are given AH = -57.2 kJ/mol K = 1.2 x 104 Which of the following statements are supported by the given data? AG = AH - TAS 0, since K >> 1 AG = - RTINK > 1 AG = AH - TAS > 0, the reaction is thermodynamically unfavorable
4. For the following reaction, 2PBS (s) + 30, (g) + 2PBO (s) + 2SO, (g) 134 Chapter 5 Scanned with CamScanner 1. Calculate AGO at 25°C, given the values of AHo = - 844 kJ/mol and -165 J/mol-K. AS° b. At what temperature does AGO become zero? Jf the reaction is not spontaneous under standard conditions at 25°C, at what temperature, if any, would the reaction become spontaneous? itul M %3! c.
Predict if the reaction happens spontaneously by calculating the standard entropy (ASrxn), entropy of the surroundings (ASsurr), and entropy of the universe (ASuniv) of the reaction at 250C: Hz(g) + CuO(s)_ + Cu(s) + H20(g) AHre= -86.6 kJ
Determine the values of AH', AS'and AG'for the following two reactions at 25 °C, using the data given in the table. Indicate if each of reactions is spontaneous or not Substance AH; (KJ'mol) S° (JKmo) AG; (kJ'mol) H-(g) 131 N2(g) 192 NH; (g) -46 193 -17 so,(g) -396 257 -371 H,0(1) -286 70 -237 H,SO, (aq) -909 20 -745 3 H2(g) + N, (g) - 2 NH3(g) b. So;(9) + H,0(1) - H,SO, (aq)
Using the provided data, determine the temperatures at which the following hypothetical reaction will be spontaneous under standard conditionsA + B → 2C + D△S°rxn = 249.1 J/K△H°rxn = 104.6 kJ * at no temperatures * at all temperatures below 146.9 °C * at all temperatures above 146.9 °C * at all temperatures above 238.1 °C * at all temperatures below 238.1 °C * at all temperatures
Calculate the reaction enthalpy for the decomposition of hydrogen peroxide, 2H2O20 H26) + O26) 2H2) + O216 2H2O0 + O26 from the following data: H2O20; AH°RXN = -187.8 kJ - 2H2O0; AH°Rxn = -571.6 kJ
0/5 Nerbs A chemical engineer is studying the two reactions shown in the table below. In each case, she fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 85.0 °C and constant total pressure. Then, she measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of her measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. do AH = -2220. kJ J AS = -6189 K C,H, (g) + 50, (g) 3Co, (g) + 4H,0(1) AG = KJ Which is spontaneous? O this reaction O the reverse reaction O neither AH = -50. kJ 0- AS =…
Vhemical engineer is studying the two'reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 82.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. 2NH, (g) N₂(g)+ 3H₂ (e) 2A1(s) + Fe₂O₂ (s) ALO, (s) + 2Fe(s) AH = 92, kJ AS = 302. FR AG = KJ Which is spontaneous? Othis reaction AS = the reverse reaction Oneither AH = -852. kJ K AG…
MISSED THIS? Watch KCV 9.10, IWE 9.11; Read Section 9.10. You can click on the Review link to access the section in your eText. Consider the table of Standard Thermodynamic Quantities for Selected Substances at 25 °C. Substance AH (kJ/mol) Substance AH (kJ/mol) Substance AH (kJ/mol) Al(g) HCl(aq) NF3 (g) Al2O3(s) Cr(g) NH3(g) F(g) NH3(aq) C(g) CH4 (g) C₂H₂(g) C₂H4 (8) C₂H6 (g) CO(g) CO₂(g) Cl(g) HCl(g) 330.0 -1675.7 716.7 -74.6 227.4 52.4 -84.68 -110.5 -393.5 121.3 -92.3 HF (g) HF (aq) H(g) Fe(g) FeO(s) Fe2O3(s) Fe3O4(s) N(g) -167.2 396.6 79.38 -273.3 -335.0 218.0 416.3 -272.0 -824.2 -1118.4 472.7 O(g) 03(g) S(g) SO₂(g) SO3(g) Sn(g) SnO(s) SnO₂ (s) -132.1 -45.9 -80.29 249.2 142.7 277.2 -296.8 -395.7 301.2 -280.7 -577.6 Review | Constants | Periodic Table Enter an equation for the formation of CO2 (g) from its elements in their standard states. Express your answer as a chemical equation including phases. C(s) + O2 (g) →CO2 (g) Submit ✓ Correct CO₂ (g) is composed of elements C and O. In…
A chem ngineer is studying the two reactions shown in the table below. In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of 42.0 °C and constant total pressure. Then, he measures the reaction enthalpy AH and reaction entropy AS of the first reaction, and the reaction enthalpy AH and reaction free energy AG of the second reaction. The results of his measurements are shown in the table. Complete the table. That is, calculate AG for the first reaction and AS for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reverse reaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium. ΔΗ Ξ - 1207. kJ J AS = -3779. K P, (g) + 6Cl, (g) → 4PCI, (g) AG = ||| Which is spontaneous? this reaction the reverse reaction neither ДН —D — 12. kJ J AS = K Sn (s) + 2CO,(g). SnO, (s) +…
Which statement best aligns with one of the three laws of thermodynamics? O AG--T(AS+AS) O AG-AU-PAV-TAS O AG-TAS O AG-T(AS-AS)
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