Chem Table – Gibbs Free Energy of Formation (Delta G)

These values are valid for the Temperature 25 C.

Chemical Substance (state)

∆GfkJ/mol

Ag(s)

0

Ag+(aq)

78

AgBr(s)

-100

AgCN(s)

164

AgCl(s)

-110

Ag2CrO4(s)

-622

AgI(s)

-66

Ag2O(s)

-10

Ag2S(s)

-40

Al(s)

0

Al2O3(s)

-1580

Al(OH)3(s)

AlCl3(s)

-630

Ba(s)

0

BaCl2(s)

-790

BaCO3(s)

-1138

BaO(s)

-552

Ba(OH)2(s)

BaSO4(s)

-1354

Be(s)

0

BeO(s)

-570

Be(OH)2(s)

-815

Br2(l)

0

Br2(g)

3

Br2(aq)

4

Br(aq)

-105

Cd(s)

0

CdO(s)

-230

Cd(OH)2(s)

-474

CdS(s)

-154

CdSO4(s)

-822

Ca(s)

0

CaC2(s)

-68

CaCO3(s)

-1130

CaO(s)

-605

Ca(OH)2(s)

-900

Ca3(PO4)2(s)

-3890

CaSO4(s)

-1320

CaSiO3(s)

-1550

C(s) (graphite)

0

C(s) (diamond)

3

CO(g)

-138

CO2(g)

-390

CH4(g)

-50

CH3OH(g)

-162

CH3OH(l)

-165

C2H2(g)

210

C2H4(g)

68

CH3CHO(g)

-130

C2H5OH(l)

-175

C2H6(g)

-33

C3H6(g)

63

C3H8(g)

-24

C2H4O(g) (ethylene oxide)

-13

CH2=CHCN(g)

195

CH3COOH(l)

-390

C6H12O6(s)

-910

CCl4

-65

Cl2(g)

0

Cl2(aq)

7

Cl(aq)

-130

Cr(s)

0

Cr2O3(s)

-1048

CrO3(s)

-500

Cu(s)

0

CuCO3(s)

-518

Cu2O(s)

-148

CuO(s)

-128

Cu(OH)2(s)

-372

CuS(s)

-48

F2(g)

0

F(aq)

-280

Fe(s)

0

Fe3C(s)

15

Fe0.95O(s) (wustite)

-240

FeO

-255

Fe3O4(s) (magnetite)

-1013

Fe2O3(s) (hematite)

-740

FeS(s)

-100

FeS2(s)

-165

FeSO4(s)

-825

HBr(g)

-5

H2CO(g)

-110

HCOOH(g)

-350

HCN(g)

125

HCl(g)

-95

HF(g)

-270

H2(g)

0

H(g)

203

H+(aq)

0

OH(aq)

-156

H2O(l)

-238

H2O(g)

-230

HNO3(aq)

-110

HNO3(l)

-80

H3PO4(s)

-1120

H3PO4(l)

H3PO4(aq)

-1142

H2S(g)

-34

H2SO4(l)

-690

H2SO4(aq)

-745

Hg(l)

0

Hg2Cl2(s)

-210

HgCl2(s)

-185

HgO(s)

-60

HgS(s)

-50

I2(s)

0

I2(g)

20

I2(aq)

16

I(aq)

-52

K(s)

0

KCl(s)

-408

KClO3(s)

-290

KClO4(s)

-304

K2O(s)

-322

K2O2(s)

-430

KO2(s)

-238

KOH(s)

-380

KOH(aq)

-440

Mg(s)

0

MgCO3(s)

-1030

MgO(s)

-570

Mg(OH)2(s)

-834

Mn(s)

0

MnO(s)

-362

Mn3O4(s)

-1280

Mn2O3(s)

-894

MnO2(s)

-466

MnO4(aq)

-450

Na(s)

0

Na+(aq)

-262

NaBr(s)

-347

Na2CO3(s)

-1048

NaHCO3(s)

-850

NaCl(s)

-384

NaH(s)

-34

NaI(s)

-282

NaNO2(s)

NaNO3(s)

-366

Na2O(s)

-377

Na2O2(s)

-450

NaOH(s)

-380

NaOH(aq)

-420

Ni(s)

0

NiCl2(s)

-272

NiO(s)

-212

Ni(OH)2(s)

-454

NiS(s)

-90

N2(g)

0

NH3(g)

-18

NH3(aq)

-26

NH4+(aq)

-80

NO(g)

86

NO2(g)

52

N2O(g)

104

N2O4(g)

98

N2O4(l)

97

N2O5(s)

134

N2H4(l)

150

N2H3CH3(l)

180

NH4ClO4(s)

-90

NH4Cl(s)

-203

O2(g)

0

O(g)

232

O3(g)

163

Pb(s)

0

PbO2(s)

-215

PbS(s)

-100

PbSO4(s)

-813

P(s) (white)

0

P(s) (red)

-12

P(s) (black)

-33

P4(g)

24

PF5(g)

-1510

PH3(g)

13

P4O10(s)

-2700

S(s) (rhombic)

0

S(s) (monoclinic)

0.1

S2-(aq)

86

S8(s)

50

SF6(g)

-1105

SiO2(s) (quartz)

-856

SiCl4(l)

-620

SO2(g)

-300

SO3(g)

-370

SO42-(aq)

-745

Sn(s) (white)

0

Sn(s) (grey)

0.1

SnO(s)

-255

SnO2(s)

-520

Sn(OH)2(s)

-490

TiCl4(g)

-728

TiO2(s)

-890

U(s)

0

UF6(s)

-2008

UF6(g)

-2030

UO2(s)

-1030

U3O8(s)

-3390

UO3(s)

-1150

Xe(g)

0

XeF2(g)

-48

XeF4(s)

-120

XeF6(g)

XeO3(s)

Zn(s)

0

ZnO(s)

-318

Zn(OH)2(s)

ZnS(s) (wurtzite)

ZnS(s) (zinc blende)

-200

ZnSO4(s)

-874

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