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12.7: Standard Thermodynamic Properties for Selected Substances

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    233062
  • Table of Contents

    This page contains several tables detailing the standard thermodynamic properties for several different substances. The table has been separated by substance, as listed below:

    Aluminum Boron Chromium Iron Oxygen Sulfur
    Antimony Bromine Cobalt Lead Phosphorus Tin
    Arsenic Cadmium Copper Lithium Potassium Titanium
    Barium Calcium Fluorine Manganese Silicon Tungsten
    Beryllium Carbon Hydrogen Mercury Silver Zinc
    Bismuth Chlorine Iodine Nitrogen Sodium Other Complexes

    Aluminum

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Al(s) 0 0 28.3
    Al(g) 324.4 285.7 164.54
    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

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    Antimony

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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

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    Arsenic

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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

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    Barium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Ba(s) 0 0 62.5
    Ba(g) 180 146 170.24
    BaO(s) –548.0 –520.3 72.1
    BaCl2(s) –855.0 –806.7 123.7
    BaSO4(s) –1473.2 –1362.3 132.2

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    Beryllium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Be(s) 0 0 9.50
    Be(g) 324.3 286.6 136.27
    BeO(s) –609.4 –580.1 13.8

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    Bismuth

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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

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    Boron

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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

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    Bromine

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Br2(l) 0 0 152.23
    Br2(g) 30.91 3.142 245.5
    Br(g) 111.88 82.429 175.0
    BrF3(g) –255.60 –229.45 292.42
    HBr(g) –36.3 –53.43 198.7

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    Cadmium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Cd(s) 0 0 51.76
    Cd(g) 112.01 77.41 167.75
    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

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    Calcium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Ca(s) 0 0 41.6
    Ca(g) 178.2 144.3 154.88
    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

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    Carbon

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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
    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
    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

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    Chlorine

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Cl2(g) 0 0 223.1
    Cl(g) 121.3 105.70 165.2
    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

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    Chromium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Cr(s) 0 0 23.77
    Cr(g) 396.6 351.8 174.50
    Cr2O3(s) –1139.7 –1058.1 81.2
    CrO3(s) –589.5
    (NH4)2Cr2O7(s) –1806.7

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    Cobalt

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Co(s) 0 0 30.0
    CoO(s) –237.9 –214.2 52.97
    Co3O4(s) –910.02 –794.98 114.22
    Co(NO3)2(s) –420.5

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    Copper

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Cu(s) 0 0 33.15
    Cu(g) 338.32 298.58 166.38
    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

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    Fluorine

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    F2(g) 0 0 202.8
    F(g) 79.4 62.3 158.8
    F2O(g) 24.7 41.9 247.43
    HF(g) –273.3 –275.4 173.8

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    Hydrogen

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    H2(g) 0 0 130.7
    H(g) 217.97 203.26 114.7
    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

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    Iodine

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    I2(s) 0 0 116.14
    I2(g) 62.438 19.3 260.7
    I(g) 106.84 70.2 180.8
    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

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    Iron

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Fe(s) 0 0 27.3
    Fe(g) 416.3 370.7 180.5
    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

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    Lead

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Pb(s) 0 0 64.81
    Pb(g) 195.2 162. 175.4
    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

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    Lithium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Li(s) 0 0 29.1
    Li(g) 159.3 126.6 138.8
    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

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    Manganese

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Mn(s) 0 0 32.0
    Mn(g) 280.7 238.5 173.7
    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

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    Mercury

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Hg(l) 0 0 75.9
    Hg(g) 61.4 31.8 175.0
    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

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    Nitrogen

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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
    N2O4(g) 11.1 99.8 304.4
    N2O5(g) 11.3 115.1 355.7
    NH3(g) –45.9 –16.5 192.8
    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

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    Oxygen

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    O2(g) 0 0 205.2
    O(g) 249.17 231.7 161.1
    O3(g) 142.7 163.2 238.9

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    Phosphorus

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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
    HPO3(s) –948.5
    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

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    Potassium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    K(s) 0 0 64.7
    K(g) 89.0 60.5 160.3
    KF(s) –576.27 –537.75 66.57
    KCl(s) –436.5 –408.5 82.6

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    Silicon

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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

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    Silver

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Ag(s) 0 0 42.55
    Ag(g) 284.9 246.0 172.89
    Ag2O(s) –31.05 –11.20 121.3
    AgCl(s) –127.0 –109.8 96.3
    Ag2S(s) –32.6 –40.7 144.0

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    Sodium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Na(s) 0 0 51.3
    Na(g) 107.5 77.0 153.7
    Na2O(s) –414.2 –375.5 75.1
    NaCl(s) –411.2 –384.1 72.1

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    Sulfur

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    S8(s) (rhombic) 0 0 256.8
    S(g) 278.81 238.25 167.82
    SO2(g) –296.83 –300.1 248.2
    SO3(g) –395.72 –371.06 256.76
    H2S(g) –20.6 –33.4 205.8
    H2SO4(l) –813.989 690.00 156.90
    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

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    Tin

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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

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    Titanium

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    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

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    Tungsten

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    W(s) 0 0 32.6
    W(g) 849.4 807.1 174.0
    WO3(s) –842.9 –764.0 75.9

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    Zinc

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    Zn(s) 0 0 41.6
    Zn(g) 130.73 95.14 160.98
    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

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    Other Complexes

    Standard Thermodynamic Properties for Selected Substances
    Substance \Delta{H}_{1}^{ \circ} (kJ mol) \Delta{G}_{1}^{ \circ} (kJ mol–1) {S}_{298}^{ \circ} (J K–1 mol–1)
    [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

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