Gibbs Free Energy for Nonspontaneous Reactions and Reactions at EquilibriumConsider the given Ellingham diagram. Rank the oxides of Mg, Zn, and Al in terms of increasing stability at 1000 ºC (1 being the least stable, 3 being the most stable). 1Al:O3ZnoMgo -100-2004Cu + O,→ 2Cu,0-3002Fe + 0, 2FEOC+ 0,→ CO,-400-50020 + 0,+ 20O200 + 0, + 200,-6002Zn + 0, 2Zno-700A-800-9004/3A1 + 0, → 2/3AĻO,-10002Mg + O, + 2Mgo-1100-1200-0°C400°C800°C1200°C1600°C2000°C273 K673 K1073 K1473 K1873 K2273 KTemperatureAG"/kJ mor' of O,

Ellingham diagram is graph of standard free energy change versus temperature. More is the negative…

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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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Gibbs Free Energy for Nonspontaneous Reactions and Reactions at Equilibrium

Consider the given Ellingham diagram. Rank the oxides of Mg, Zn, and Al in terms of increasing stability at 1000 ºC (1 being the least stable, 3 being the most stable).

-100
-200
4Cu + O,→ 2Cu,0
-300
2Fe + 0, 2FEO
C+ 0,→ CO,
-400
-500
20 + 0,+ 20O
200 + 0, + 200,
-600
2Zn + 0, 2Zno
-700
A
-800
-900
4/3A1 + 0, → 2/3AĻO,
-1000
2Mg + O, + 2Mgo
-1100
-1200-
0°C
400°C
800°C
1200°C
1600°C
2000°C
273 K
673 K
1073 K
1473 K
1873 K
2273 K
Temperature
AG"/kJ mor' of O,

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