In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by reactions involving carbon monoxide. Use the following thermochemical equations, Fe,O3(s) + 3CO(g)→ 2Fe(s) + 3CO,(g) AH° = -28 kJ 3Fe,O3() + CO(g) 2Fe3O4() + Co,(g) AH = -59 kJ FezO,(s) + CO(g)→ 3FCO(s) + CO,(g) AH° = +38 kJ The AH° for the reaction FeO() + CO(g) Fe(s) + CO2(g) is -16.8 kJ. Use this data and the data in the following table to calculate the value of AH° for FeO. Standard Enthalpies of Formation of Typical Substances AH; (KI mol-1) AH; (kl mol-1) 90.37 Substance Substance AH (KI mol-1) Substance AH; (KI mol-1) Substance Ag(s) AgBr() H,O,(/) -187.6 CH.(g) -84.667 NO(g) - 100.4 - 127.0 HBr(g) -36 CH,OH(/) -277.63 NO,(g) 33.8 AgCI(s) HCIg) -92.30 Ca) 81.57 Al() HI(g) 26.6 CaBr,() -682.8 9.67 Al,0,) -1669.8 HNO,() -173.2 CaCO() - 1207 11 CG) (graphite) H,SO,() -811.32 CaCl,() -795.0 Na(s) CO(g) HC,H,0,) NaHCO,) Na,CO,() -110.5 -487.0 CaO() -635.5 -947.7 CO.(g) -393.5 Hg(/) Ca(OH),() -986.59 -1131 CH,(g) -74.848 Hg(g) 60.84 CaSO,() - 1432.7 NaCI) -411.0 CH,CIg) -82.0 1,6) 0. - 1575.2 -426.8 CasO, H,0() CaSO, 2H,04) NAOH() CHI(g) 14.2 K(s) - 2021. Na,SO,6) -1384.5 CH,OH() -238.6 KCI) -435.89 Chg) CO(NH),() (urea) -333.19 KSO,) -1433.7 Fe() Pb(s) CO(NH),(ag) -391.2 N2(g) Fe,O,6) -822.2 PbO() -219.2 CH.(g) 226.75 NH,(g) -46.19 H2(g) H;O(g) CH.(g) 52.284 NH,CI) -315.4 -241.8 So-(g) -296.9 H,O() -285.9 So,(g) -395.2 Express the answer in units of kilojoules per mole. AH° = i kJ/mol

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In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by reactions involving carbon monoxide. Use the
following thermochemical equations,
Fe,O3(s) + 3CO(g)→ 2Fe(s) + 3CO,(g)
AH° = -28 kJ
3Fe,O3() + CO(g) 2Fe3O4() + Co,(g)
AH = -59 kJ
FezO,(s) + CO(g)→ 3FCO(s) + CO,(g)
AH° = +38 kJ
The AH° for the reaction
FeO() + CO(g) Fe(s) + CO2(g)
is -16.8 kJ. Use this data and the data in the following table to calculate the value of AH° for FeO.
Standard Enthalpies of Formation of Typical Substances
AH; (KI mol-1)
AH; (kl mol-1)
90.37
Substance
Substance
AH (KI mol-1)
Substance
AH; (KI mol-1)
Substance
Ag(s)
AgBr()
H,O,(/)
-187.6
CH.(g)
-84.667
NO(g)
- 100.4
- 127.0
HBr(g)
-36
CH,OH(/)
-277.63
NO,(g)
33.8
AgCI(s)
HCIg)
-92.30
Ca)
81.57
Al()
HI(g)
26.6
CaBr,()
-682.8
9.67
Al,0,)
-1669.8
HNO,()
-173.2
CaCO()
- 1207
11
CG) (graphite)
H,SO,()
-811.32
CaCl,()
-795.0
Na(s)
CO(g)
HC,H,0,)
NaHCO,)
Na,CO,()
-110.5
-487.0
CaO()
-635.5
-947.7
CO.(g)
-393.5
Hg(/)
Ca(OH),()
-986.59
-1131
CH,(g)
-74.848
Hg(g)
60.84
CaSO,()
- 1432.7
NaCI)
-411.0
CH,CIg)
-82.0
1,6)
0.
- 1575.2
-426.8
CasO, H,0()
CaSO, 2H,04)
NAOH()
CHI(g)
14.2
K(s)
- 2021.
Na,SO,6)
-1384.5
CH,OH()
-238.6
KCI)
-435.89
Chg)
CO(NH),() (urea)
-333.19
KSO,)
-1433.7
Fe()
Pb(s)
CO(NH),(ag)
-391.2
N2(g)
Fe,O,6)
-822.2
PbO()
-219.2
CH.(g)
226.75
NH,(g)
-46.19
H2(g)
H;O(g)
CH.(g)
52.284
NH,CI)
-315.4
-241.8
So-(g)
-296.9
H,O()
-285.9
So,(g)
-395.2
Express the answer in units of kilojoules per mole.
AH° =
i
kJ/mol
Transcribed Image Text:In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by reactions involving carbon monoxide. Use the following thermochemical equations, Fe,O3(s) + 3CO(g)→ 2Fe(s) + 3CO,(g) AH° = -28 kJ 3Fe,O3() + CO(g) 2Fe3O4() + Co,(g) AH = -59 kJ FezO,(s) + CO(g)→ 3FCO(s) + CO,(g) AH° = +38 kJ The AH° for the reaction FeO() + CO(g) Fe(s) + CO2(g) is -16.8 kJ. Use this data and the data in the following table to calculate the value of AH° for FeO. Standard Enthalpies of Formation of Typical Substances AH; (KI mol-1) AH; (kl mol-1) 90.37 Substance Substance AH (KI mol-1) Substance AH; (KI mol-1) Substance Ag(s) AgBr() H,O,(/) -187.6 CH.(g) -84.667 NO(g) - 100.4 - 127.0 HBr(g) -36 CH,OH(/) -277.63 NO,(g) 33.8 AgCI(s) HCIg) -92.30 Ca) 81.57 Al() HI(g) 26.6 CaBr,() -682.8 9.67 Al,0,) -1669.8 HNO,() -173.2 CaCO() - 1207 11 CG) (graphite) H,SO,() -811.32 CaCl,() -795.0 Na(s) CO(g) HC,H,0,) NaHCO,) Na,CO,() -110.5 -487.0 CaO() -635.5 -947.7 CO.(g) -393.5 Hg(/) Ca(OH),() -986.59 -1131 CH,(g) -74.848 Hg(g) 60.84 CaSO,() - 1432.7 NaCI) -411.0 CH,CIg) -82.0 1,6) 0. - 1575.2 -426.8 CasO, H,0() CaSO, 2H,04) NAOH() CHI(g) 14.2 K(s) - 2021. Na,SO,6) -1384.5 CH,OH() -238.6 KCI) -435.89 Chg) CO(NH),() (urea) -333.19 KSO,) -1433.7 Fe() Pb(s) CO(NH),(ag) -391.2 N2(g) Fe,O,6) -822.2 PbO() -219.2 CH.(g) 226.75 NH,(g) -46.19 H2(g) H;O(g) CH.(g) 52.284 NH,CI) -315.4 -241.8 So-(g) -296.9 H,O() -285.9 So,(g) -395.2 Express the answer in units of kilojoules per mole. AH° = i kJ/mol
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