Use the data in tables below to calculate AG° for the formation of iron(III) oxide (the iron oxide in rust). The equation for the reaction is 4Fe(s) + 30₂(g) →→2Fe₂O3(s)

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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
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Use the data in tables below to calculate AG° for the
formation of iron(III) oxide (the iron oxide in rust).
The equation for the reaction is
4Fe(s) + 30₂(g) →→2Fe₂O3(s)
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()
C₂H₂(g)
C₂H4(g)
C₂H6(g)
C8H18 (4)
C₂H,OH (1)
Ca(s)
CaCO3(s)
CaCl₂(s)
197.9
213.6
186.2
234.2
126.8
CO(NH,),(s) 104.6
CO(NH,),(aq) 173.8
200.8
219.8
229.5
466.9
161
C₂H₂(g)
C₂H4(g)
C₂H6(g)
C₂H₂OH(7)
Ca(s)
CaBr₂(s)
CaCO3(s)
CaCl₂(s)
CaO(s)
Standard Entropies of Some Typical Substances at 298.15 K
Cl₂(g)
Fe(s)
Fe₂O3(s)
H₂(g)
H₂O(g)
H₂O(1)
(J mol-¹ K-¹)
42.55
96.2
AG° =
Substance
Ag(s)
AgBr(s)
AgCl(s)
Al(s)
Al₂O3(s)
C(s) (graphite)
CO(g)
CO₂(g)
CH4(g)
CH3CI(g)
CH₂I(g)
CH₂OH(7)
CO(NH₂)2(s) (urea)
CO(NH,),(aq)
Ca(OH)₂(3)
CaSO4(s)
CaSO4 H₂O(s)
CaSO4-2H₂O(s)
kJ
28.3
51.0
5.69
41.4
92.9
114
Substance
CaO(s)
Ca(OH)₂(s)
CaSO4(s)
CaSO4+H₂O(s) 131
CaSO4-2H₂O(s) 194.0
Cl₂(g)
Fe(s)
Fe₂O3(s)
H₂(g)
H₂O(g)
H₂O(1)
HCI(g)
HNO3(1)
H₂SO4(1)
HC,H,O,(/)
Hg(1)
Hg(g)
K(s)
KCI(s)
K₂SO4(s)
-100.4
-127.0
0
- 1669.8
0
-110.5
-393.5
-74.848
-82.0
14.2
-238.6
-333.19
-391.2
226.75
52.284
-84.667
-277.63
0
-682.8
-1207
(J mol-¹ K-¹)
40
76.1
107
-795.0
-635.5
-986.59
- 1432.7
-1575.2
-2021.1
0
0
-822.2
0
-241.8
-285.9
223.0
27
90.0
130.6
188.7
69.96
Standard Enthalpies of Formation of Typical Substances
AH; (kJ mol-¹)
Substance
0
H₂O₂(1)
HBr(g)
HCI(g)
HI(g)
HNO3(1)
H₂SO4(1)
HC,H,O,(D)
186.7
155.6
157
160
76.1
175
64.18
82.59
176
Hg(1)
Hg(g)
1₂(s)
K(s)
KCI(s)
K₂SO4(s)
N₂(g)
NH3(g)
NH,Cl(s)
NO(g)
NO₂(g)
N₂O(g)
N₂O4(g)
N₂O(g)
Na(s)
NaHCO3(s)
Na₂CO3(s)
Substance
N₂(8)
NH3(g)
NH,CI()
NO(g)
NO₂(g)
NaCl(s)
NaOH(s)
Na₂SO4(s)
O₂(g)
Pb(s)
PbO(s)
S(s)
SO₂(g)
SO3(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)
-1433.7
0
-46.19
AH; (kJ mol-¹)
-187.6
-36
-92.30
26.6
- 173.2
-811.32
-487.0
0
60.84
0
0
-435.89
-315.4
191.5
192.5
94.6
210.6
240.5
220.0
304
11
0
-947.7
-1131
90.37
33.8
81.57
9.67
-411.0
-426.8
- 1384.5
0
0
-219.2
0
-296.9
-395.2
136
102
51.0
149.4
205.0
67.8
31.9
248.5
256.2
72.38
64.18
Transcribed Image Text:Use the data in tables below to calculate AG° for the formation of iron(III) oxide (the iron oxide in rust). The equation for the reaction is 4Fe(s) + 30₂(g) →→2Fe₂O3(s) 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() C₂H₂(g) C₂H4(g) C₂H6(g) C8H18 (4) C₂H,OH (1) Ca(s) CaCO3(s) CaCl₂(s) 197.9 213.6 186.2 234.2 126.8 CO(NH,),(s) 104.6 CO(NH,),(aq) 173.8 200.8 219.8 229.5 466.9 161 C₂H₂(g) C₂H4(g) C₂H6(g) C₂H₂OH(7) Ca(s) CaBr₂(s) CaCO3(s) CaCl₂(s) CaO(s) Standard Entropies of Some Typical Substances at 298.15 K Cl₂(g) Fe(s) Fe₂O3(s) H₂(g) H₂O(g) H₂O(1) (J mol-¹ K-¹) 42.55 96.2 AG° = Substance Ag(s) AgBr(s) AgCl(s) Al(s) Al₂O3(s) C(s) (graphite) CO(g) CO₂(g) CH4(g) CH3CI(g) CH₂I(g) CH₂OH(7) CO(NH₂)2(s) (urea) CO(NH,),(aq) Ca(OH)₂(3) CaSO4(s) CaSO4 H₂O(s) CaSO4-2H₂O(s) kJ 28.3 51.0 5.69 41.4 92.9 114 Substance CaO(s) Ca(OH)₂(s) CaSO4(s) CaSO4+H₂O(s) 131 CaSO4-2H₂O(s) 194.0 Cl₂(g) Fe(s) Fe₂O3(s) H₂(g) H₂O(g) H₂O(1) HCI(g) HNO3(1) H₂SO4(1) HC,H,O,(/) Hg(1) Hg(g) K(s) KCI(s) K₂SO4(s) -100.4 -127.0 0 - 1669.8 0 -110.5 -393.5 -74.848 -82.0 14.2 -238.6 -333.19 -391.2 226.75 52.284 -84.667 -277.63 0 -682.8 -1207 (J mol-¹ K-¹) 40 76.1 107 -795.0 -635.5 -986.59 - 1432.7 -1575.2 -2021.1 0 0 -822.2 0 -241.8 -285.9 223.0 27 90.0 130.6 188.7 69.96 Standard Enthalpies of Formation of Typical Substances AH; (kJ mol-¹) Substance 0 H₂O₂(1) HBr(g) HCI(g) HI(g) HNO3(1) H₂SO4(1) HC,H,O,(D) 186.7 155.6 157 160 76.1 175 64.18 82.59 176 Hg(1) Hg(g) 1₂(s) K(s) KCI(s) K₂SO4(s) N₂(g) NH3(g) NH,Cl(s) NO(g) NO₂(g) N₂O(g) N₂O4(g) N₂O(g) Na(s) NaHCO3(s) Na₂CO3(s) Substance N₂(8) NH3(g) NH,CI() NO(g) NO₂(g) NaCl(s) NaOH(s) Na₂SO4(s) O₂(g) Pb(s) PbO(s) S(s) SO₂(g) SO3(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) -1433.7 0 -46.19 AH; (kJ mol-¹) -187.6 -36 -92.30 26.6 - 173.2 -811.32 -487.0 0 60.84 0 0 -435.89 -315.4 191.5 192.5 94.6 210.6 240.5 220.0 304 11 0 -947.7 -1131 90.37 33.8 81.57 9.67 -411.0 -426.8 - 1384.5 0 0 -219.2 0 -296.9 -395.2 136 102 51.0 149.4 205.0 67.8 31.9 248.5 256.2 72.38 64.18
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