Appendix H: Standard Thermodynamic Properties for Selected Substances

Thermodynamic Properties

Table H.1 Standard Thermodynamic Properties for Selected Substances
Substance [latex]{\Delta}H_\text{f}^{\circ}[/latex] (kJ mol) [latex]{\Delta}G_\text{f}^{\circ}[/latex] (kJ mol–1) [latex]S_{298}^{\circ}[/latex] (J K–1 mol–1)
aluminum
Al(s) 0 0 28.3
Al(g) 324.4 285.7 164.54
Al3+(aq) –531 –485 –321.7
Al2O3(s) –1676 –1582 50.92
AlF3(s) –1510.4 –1425 66.5
AlCl3(s) –704.2 –628.8 110.67
AlCl3·6H2O(s) –2691.57 –2269.40 376.56
Al2S3(s) –724.0 –492.4 116.9
Al2(SO4)3(s) –3445.06 –3506.61 239.32
antimony
Sb(s) 0 0 45.69
Sb(g) 262.34 222.17 180.16
Sb4O6(s) –1440.55 –1268.17 220.92
SbCl3(g) –313.8 –301.2 337.80
SbCl5(g) –394.34 –334.29 401.94
Sb2S3(s) –174.89 –173.64 182.00
SbCl3(s) –382.17 –323.72 184.10
SbOCl(s) –374.0
arsenic
As(s) 0 0 35.1
As(g) 302.5 261.0 174.21
As4(g) 143.9 92.4 314
As4O6(s) –1313.94 –1152.52 214.22
As2O5(s) –924.87 –782.41 105.44
AsCl3(g) –261.50 –248.95 327.06
As2S3(s) –169.03 –168.62 163.59
AsH3(g) 66.44 68.93 222.78
H3AsO4(s) –906.3
barium
Ba(s) 0 0 62.5
Ba(g) 180 146 170.24
Ba2+(aq) –537.6 –560.8 9.6
BaO(s) –548.0 –520.3 72.1
BaCl2(s) –855.0 –806.7 123.7
BaSO4(s) –1473.2 –1362.3 132.2
beryllium
Be(s) 0 0 9.50
Be(g) 324.3 286.6 136.27
BeO(s) –609.4 –580.1 13.8
bismuth
Bi(s) 0 0 56.74
Bi(g) 207.1 168.2 187.00
Bi2O3(s) –573.88 –493.7 151.5
BiCl3(s) –379.07 –315.06 176.98
Bi2S3(s) –143.1 –140.6 200.4
boron
B(s) 0 0 5.86
B(g) 565.0 521.0 153.4
B2O3(s) –1273.5 –1194.3 53.97
B2H6(g) 36.4 87.6 232.1
H3BO3(s) –1094.33 –968.92 88.83
BF3(g) –1136.0 –1119.4 254.4
BCl3(g) –403.8 –388.7 290.1
B3N3H6(l) –540.99 –392.79 199.58
HBO2(s) –794.25 –723.41 37.66
bromine
Br2(l) 0 0 152.23
Br2(g) 30.91 3.142 245.5
Br(g) 111.88 82.429 175.0
Br(aq) –120.9 –102.82 80.71
BrF3(g) –255.60 –229.45 292.42
HBr(g) –36.3 –53.43 198.7
cadmium
Cd(s) 0 0 51.76
Cd(g) 112.01 77.41 167.75
Cd2+(aq) –75.90 –77.61 –73.2
CdO(s) –258.2 –228.4 54.8
CdCl2(s) –391.5 –343.9 115.3
CdSO4(s) –933.3 –822.7 123.0
CdS(s) –161.9 –156.5 64.9
calcium
Ca(s) 0 0 41.6
Ca(g) 178.2 144.3 154.88
Ca2+(aq) –542.96 –553.04 –55.2
CaO(s) –634.9 –603.3 38.1
Ca(OH)2(s) –985.2 –897.5 83.4
CaSO4(s) –1434.5 –1322.0 106.5
CaSO4·2H2O(s) –2022.63 –1797.45 194.14
CaCO3(s) (calcite) –1220.0 –1081.4 110.0
CaSO3·H2O(s) –1752.68 –1555.19 184.10
carbon
C(s) (graphite) 0 0 5.740
C(s) (diamond) 1.89 2.90 2.38
C(g) 716.681 671.2 158.1
CO(g) –110.52 –137.15 197.7
CO2(g) –393.51 –394.36 213.8
CO32–(aq) –677.1 –527.8 –56.9
CH4(g) –74.6 –50.5 186.3
CH3OH(l) –239.2 –166.6 126.8
CH3OH(g) –201.0 –162.3 239.9
CCl4(l) –128.2 –62.5 214.4
CCl4(g) –95.7 –58.2 309.7
CHCl3(l) –134.1 –73.7 201.7
CHCl3(g) –103.14 –70.34 295.71
CS2(l) 89.70 65.27 151.34
CS2(g) 116.9 66.8 238.0
C2H2(g) 227.4 209.2 200.9
C2H4(g) 52.4 68.4 219.3
C2H6(g) –84.0 –32.0 229.2
CH3CO2H(l) –484.3 –389.9 159.8
CH3CO2H(g) –434.84 –376.69 282.50
C2H5OH(l) –277.6 –174.8 160.7
C2H5OH(g) –234.8 –167.9 281.6
HCO3(aq) –691.11 –587.06 95
C3H8(g) –103.8 –23.4 270.3
C6H6(g) 82.927 129.66 269.2
C6H6(l) 49.1 124.50 173.4
CH2Cl2(l) –124.2 –63.2 177.8
CH2Cl2(g) –95.4 –65.90 270.2
CH3Cl(g) –81.9 –60.2 234.6
C2H5Cl(l) –136.52 –59.31 190.79
C2H5Cl(g) –112.17 –60.39 276.00
C2N2(g) 308.98 297.36 241.90
HCN(l) 108.9 125.0 112.8
HCN(g) 135.5 124.7 201.8
cesium
Cs+(aq) –248 –282.0 133
chlorine
Cl2(g) 0 0 223.1
Cl(g) 121.3 105.70 165.2
Cl(aq) –167.2 –131.2 56.5
ClF(g) –54.48 –55.94 217.78
ClF3(g) –158.99 –118.83 281.50
Cl2O(g) 80.3 97.9 266.2
Cl2O7(l) 238.1
Cl2O7(g) 272.0
HCl(g) –92.307 –95.299 186.9
HClO4(l) –40.58
chromium
Cr(s) 0 0 23.77
Cr(g) 396.6 351.8 174.50
CrO42–(aq) –881.2 –727.8 50.21
Cr2O72–(aq) –1490.3 –1301.1 261.9
Cr2O3(s) –1139.7 –1058.1 81.2
CrO3(s) –589.5
(NH4)2Cr2O7(s) –1806.7
cobalt
Co(s) 0 0 30.0
Co2+(aq) –67.4 –51.5 –155
Co3+(aq) 92 134 –305.0
CoO(s) –237.9 –214.2 52.97
Co3O4(s) –910.02 –794.98 114.22
Co(NO3)2(s) –420.5
copper
Cu(s) 0 0 33.15
Cu(g) 338.32 298.58 166.38
Cu+(aq) 51.9 50.2 –26
Cu2+(aq) 64.77 65.49 –99.6
CuO(s) –157.3 –129.7 42.63
Cu2O(s) –168.6 –146.0 93.14
CuS(s) –53.1 –53.6 66.5
Cu2S(s) –79.5 –86.2 120.9
CuSO4(s) –771.36 –662.2 109.2
Cu(NO3)2(s) –302.9
fluorine
F2(g) 0 0 202.8
F(g) 79.4 62.3 158.8
F(aq) –332.6 –278.8 –13.8
F2O(g) 24.7 41.9 247.43
HF(g) –273.3 –275.4 173.8
hydrogen
H2(g) 0 0 130.7
H(g) 217.97 203.26 114.7
H+(aq) 0 0 0
OH(aq) –230.0 –157.2 –10.75
H3O+(aq) –285.8 69.91
H2O(l) –285.83 –237.1 70.0
H2O(g) –241.82 –228.59 188.8
H2O2(l) –187.78 –120.35 109.6
H2O2(g) –136.3 –105.6 232.7
HF(g) –273.3 –275.4 173.8
HCl(g) –92.307 –95.299 186.9
HBr(g) –36.3 –53.43 198.7
HI(g) 26.48 1.70 206.59
H2S(g) –20.6 –33.4 205.8
H2Se(g) 29.7 15.9 219.0
iodine
I2(s) 0 0 116.14
I2(g) 62.438 19.3 260.7
I(g) 106.84 70.2 180.8
I(aq) –55.19 –51.57 11.13
IF(g) 95.65 –118.49 236.06
ICl(g) 17.78 –5.44 247.44
IBr(g) 40.84 3.72 258.66
IF7(g) –943.91 –818.39 346.44
HI(g) 26.48 1.70 206.59
iron
Fe(s) 0 0 27.3
Fe(g) 416.3 370.7 180.5
Fe2+(aq) –89.1 –78.90 –137.7
Fe3+(aq) –48.5 –4.7 –315.9
Fe2O3(s) –824.2 –742.2 87.40
Fe3O4(s) –1118.4 –1015.4 146.4
Fe(CO)5(l) –774.04 –705.42 338.07
Fe(CO)5(g) –733.87 –697.26 445.18
FeCl2(s) –341.79 –302.30 117.95
FeCl3(s) –399.49 –334.00 142.3
FeO(s) –272.0 –255.2 60.75
Fe(OH)2(s) –569.0 –486.5 88.
Fe(OH)3(s) –823.0 –696.5 106.7
FeS(s) –100.0 –100.4 60.29
Fe3C(s) 25.10 20.08 104.60
lead
Pb(s) 0 0 64.81
Pb(g) 195.2 162. 175.4
Pb2+(aq) –1.7 –24.43 10.5
PbO(s) (yellow) –217.32 –187.89 68.70
PbO(s) (red) –218.99 –188.93 66.5
Pb(OH)2(s) –515.9
PbS(s) –100.4 –98.7 91.2
Pb(NO3)2(s) –451.9
PbO2(s) –277.4 –217.3 68.6
PbCl2(s) –359.4 –314.1 136.0
lithium
Li(s) 0 0 29.1
Li(g) 159.3 126.6 138.8
Li+(aq) –278.5 –293.3 13.4
LiH(s) –90.5 –68.3 20.0
Li(OH)(s) –487.5 –441.5 42.8
LiF(s) –616.0 –587.5 35.7
Li2CO3(s) –1216.04 –1132.19 90.17
magnesium
Mg2+(aq) –466.9 –454.8 –138.1
manganese
Mn(s) 0 0 32.0
Mn(g) 280.7 238.5 173.7
Mn2+(aq) –220.8 –228.1 –73.6
MnO(s) –385.2 –362.9 59.71
MnO2(s) –520.03 –465.1 53.05
Mn2O3(s) –958.97 –881.15 110.46
Mn3O4(s) –1378.83 –1283.23 155.64
MnO4(aq) –541.4 –447.2 191.2
MnO42–(aq) –653.0 –500.7 59
mercury
Hg(l) 0 0 75.9
Hg(g) 61.4 31.8 175.0
Hg2+(aq) 164.8
Hg2+(aq) 172.4 153.9 84.5
HgO(s) (red) –90.83 –58.5 70.29
HgO(s) (yellow) –90.46 –58.43 71.13
HgCl2(s) –224.3 –178.6 146.0
Hg2Cl2(s) –265.4 –210.7 191.6
HgS(s) (red) –58.16 –50.6 82.4
HgS(s) (black) –53.56 –47.70 88.28
HgSO4(s) –707.51 –594.13 0.00
nickel
Ni2+(aq) –64.0 –46.4 –159
nitrogen
N2(g) 0 0 191.6
N(g) 472.704 455.5 153.3
NO(g) 90.25 87.6 210.8
NO2(g) 33.2 51.30 240.1
N2O(g) 81.6 103.7 220.0
N2O3(g) 83.72 139.41 312.17
NO3(aq) –205.0 –108.7 146.4
N2O4(g) 11.1 99.8 304.4
N2O5(g) 11.3 115.1 355.7
NH3(g) –45.9 –16.5 192.8
NH4+(aq) –132.5 –79.31 113.4
N2H4(l) 50.63 149.43 121.21
N2H4(g) 95.4 159.4 238.5
NH4NO3(s) –365.56 –183.87 151.08
NH4Cl(s) –314.43 –202.87 94.6
NH4Br(s) –270.8 –175.2 113.0
NH4I(s) –201.4 –112.5 117.0
NH4NO2(s) –256.5
HNO3(l) –174.1 –80.7 155.6
HNO3(g) –133.9 –73.5 266.9
oxygen
O2(g) 0 0 205.2
O(g) 249.17 231.7 161.1
O3(g) 142.7 163.2 238.9
phosphorus
P4(s) 0 0 164.4
P4(g) 58.91 24.4 280.0
P(g) 314.64 278.25 163.19
PH3(g) 5.4 13.5 210.2
PCl3(g) –287.0 –267.8 311.78
PCl5(g) –374.9 –305.0 364.4
P4O6(s) –1640.1
P4O10(s) –2984.0 –2697.0 228.86
PO43–(aq) –1277 –1019 –222
HPO3(s) –948.5
HPO42–(aq) –1292.1 –1089.3 –33
H2PO42–(aq) –1296.3 –1130.4 90.4
H3PO2(s) –604.6
H3PO3(s) –964.4
H3PO4(s) –1279.0 –1119.1 110.50
H3PO4(l) –1266.9 –1124.3 110.5
H4P2O7(s) –2241.0
POCl3(l) –597.1 –520.8 222.5
POCl3(g) –558.5 –512.9 325.5
potassium
K(s) 0 0 64.7
K(g) 89.0 60.5 160.3
K+(aq) –252.4 –283.3 102.5
KF(s) –576.27 –537.75 66.57
KCl(s) –436.5 –408.5 82.6
rubidium
Rb+(aq) –246 –282.2 124
silicon
Si(s) 0 0 18.8
Si(g) 450.0 405.5 168.0
SiO2(s) –910.7 –856.3 41.5
SiH4(g) 34.3 56.9 204.6
H2SiO3(s) –1188.67 –1092.44 133.89
H4SiO4(s) –1481.14 –1333.02 192.46
SiF4(g) –1615.0 –1572.8 282.8
SiCl4(l) –687.0 –619.8 239.7
SiCl4(g) –662.75 –622.58 330.62
SiC(s, beta cubic) –73.22 –70.71 16.61
SiC(s, alpha hexagonal) –71.55 –69.04 16.48
silver
Ag(s) 0 0 42.55
Ag(g) 284.9 246.0 172.89
Ag+(aq) 105.6 77.11 72.68
Ag2O(s) –31.05 –11.20 121.3
AgCl(s) –127.0 –109.8 96.3
Ag2S(s) –32.6 –40.7 144.0
sodium
Na(s) 0 0 51.3
Na(g) 107.5 77.0 153.7
Na+(aq) –240.1 –261.9 59
Na2O(s) –414.2 –375.5 75.1
NaCl(s) –411.2 –384.1 72.1
strontium
Sr2+(aq) –545.8 –557.3 –32.6
sulfur
S8(s) (rhombic) 0 0 256.8
S(g) 278.81 238.25 167.82
S2–(aq) 41.8 83.7 22
SO2(g) –296.83 –300.1 248.2
SO3(g) –395.72 –371.06 256.76
SO42–(aq) –909.3 –744.5 20.1
S2O32–(aq) –648.5 –522.5 67
H2S(g) –20.6 –33.4 205.8
HS(aq) –17.7 12.6 61.1
H2SO4(l) –813.989 690.00 156.90
HSO42–(aq) –885.75 –752.87 126.9
H2S2O7(s) –1273.6
SF4(g) –728.43 –684.84 291.12
SF6(g) –1220.5 –1116.5 291.5
SCl2(l) –50
SCl2(g) –19.7
S2Cl2(l) –59.4
S2Cl2(g) –19.50 –29.25 319.45
SOCl2(g) –212.55 –198.32 309.66
SOCl2(l) –245.6
SO2Cl2(l) –394.1
SO2Cl2(g) –354.80 –310.45 311.83
tin
Sn(s) 0 0 51.2
Sn(g) 301.2 266.2 168.5
SnO(s) –285.8 –256.9 56.5
SnO2(s) –577.6 –515.8 49.0
SnCl4(l) –511.3 –440.1 258.6
SnCl4(g) –471.5 –432.2 365.8
titanium
Ti(s) 0 0 30.7
Ti(g) 473.0 428.4 180.3
TiO2(s) –944.0 –888.8 50.6
TiCl4(l) –804.2 –737.2 252.4
TiCl4(g) –763.2 –726.3 353.2
tungsten
W(s) 0 0 32.6
W(g) 849.4 807.1 174.0
WO3(s) –842.9 –764.0 75.9
zinc
Zn(s) 0 0 41.6
Zn(g) 130.73 95.14 160.98
Zn2+(aq) –153.9 –147.1 –112.1
ZnO(s) –350.5 –320.5 43.7
ZnCl2(s) –415.1 –369.43 111.5
ZnS(s) –206.0 –201.3 57.7
ZnSO4(s) –982.8 –871.5 110.5
ZnCO3(s) –812.78 –731.57 82.42
complexes
[Co(NH3)4(NO2)2]NO3, cis –898.7
[Co(NH3)4(NO2)2]NO3, trans –896.2
NH4[Co(NH3)2(NO2)4] –837.6
[Co(NH3)6][Co(NH3)2(NO2)4]3 –2733.0
[Co(NH3)4Cl2]Cl, cis –874.9
[Co(NH3)4Cl2]Cl, trans –877.4
[Co(en)2(NO2)2]NO3, cis –689.5
[Co(en)2Cl2]Cl, cis –681.2
[Co(en)2Cl2]Cl, trans –677.4
[Co(en)3](ClO4)3 –762.7
[Co(en)3]Br2 –595.8
[Co(en)3]I2 –475.3
[Co(en)3]I3 –519.2
[Co(NH3)6](ClO4)3 –1034.7 –221.1 615
[Co(NH3)5NO2](NO3)2 –1088.7 –412.9 331
[Co(NH3)6](NO3)3 –1282.0 –524.5 448
[Co(NH3)5Cl]Cl2 –1017.1 –582.5 366.1
[Pt(NH3)4]Cl2 –725.5
[Ni(NH3)6]Cl2 –994.1
[Ni(NH3)6]Br2 –923.8
[Ni(NH3)6]I2 –808.3

Attribution & References

Except where otherwise noted, this page is adapted from “Appendix G: Standard Thermodynamic Properties for Selected Substances” In General Chemistry 1 & 2 by Rice University, a derivative of Chemistry (Open Stax) by Paul Flowers, Klaus Theopold, Richard Langley & William R. Robinson and is licensed under CC BY 4.0. ​Access for free at Chemistry (OpenStax)

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Chemistry v. 1 backup Copyright © 2023 by Gregory Anderson; Caryn Fahey; Jackie MacDonald; Adrienne Richards; Samantha Sullivan Sauer; J.R. van Haarlem; and David Wegman is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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