AL Al(s) 0 0 28.3 Al(g) 326 286 164.4 Al2O3(s) -1676 -1582 50.92 AlF3(s) -1504 -1425 66.44 AlCl3(s) -704.2 -628.9 110.7 AlCl3.6H2O(s) -2692 . . Al2S3(s) -724 -492.4 . Al2(SO4)3(s) -3440.8 -3100.1 239 AR Ar(g) 0 0 154.84 SB Sb(s) 0 0 45.69 Sb(g) 262 222 180.2 Sb4O6(s) -1441 -1268 221 SbCl3(g) -314 -301 337.7 SbCl5(g) -394.3 -334.4 -401.8 Sb2S3(s) -175 -174 182 SbCl3(s) -382.2 -323.7 184 SbOCl(s) -374 . . AS As(s) 0 0 35 As(g) 303 261 174.1 As4(g) 144 92.5 314 As4O6(s) -1313.9 -1152.5 214 As2O5(s) -924.87 -782.4 105 AsCl3(g) -258.6 -245.9 327.1 As2S3(s) -169 -169 164 AsH3(g) 66.44 68.91 222.7 H3AsO4(s) -906.3 . . BA Ba(s) 0 0 66.9 Ba(g) 175.6 144.8 170.3 BaO(s) -558.1 -528.4 70.3 BaCl2(s) -860.06 -810.9 126 BaSO4(s) -1465 -1353 132 BE Be(s) 0 0 9.54 Be(g) 320.6 282.8 136.17 BeO(s) -610.9 -581.6 14.1 BI Bi(s) 0 0 56.74 Bi(g) 207 168 186.90 Bi2O3(s) -573.88 -493.7 151 BiCl3(s) -379 -315 177 Bi2S3(s) -143 -141 200 B B(s) 0 0 5.86 B(g) 562.7 518.8 153.3 B2O3(s) -1272.8 -1193.7 53.97 B2H6(g) 36 86.6 232.0 B(OH)3(s) -1094.3 -969.01 88.83 BF3(g) -1137.3 -1120.3 254.0 BCl3(g) -403.8 -388.7 290.0 B3N3H6(l) -541.0 -392.8 200 HBO2(s) -794.25 -723.4 40 BR Br2(l) 0 0 152.23 Br2(g) 30.91 3.142 245.35 Br(g) 111.88 82.429 174.91 BrF3(g) -255.6 229.5 292.4 HBr(g) -36.4 -53.43 198.59 CD Cd(s) 0 0 51.76 Cd(g) 112.0 77.45 167.64 CdO(s) -258 -228 54.8 CdCl2(s) -391.5 -344.0 115.3 CdSO4(s) -933.28 -822.78 123.04 CdS(s) -162 -156 64.9 CA Ca(s) 0 0 41.6 Ca(g) 192.6 158.9 154.78 CaO(s) -635.5 -604.2 40 Ca(OH)2(s) -986.59 -896.76 76.1 CaSO4(s) -1432.7 -1320.3 107 CaSO4.2H20(s) -2021.1 -1795.7 194.0 CaCO3(s) -1206.9 -1128.8 92.9 CaSO3.2H2O(s) -1762 -1565 184 C graphite 0 0 5.740 diamond 1.897 2.900 2.38 C(g) 716.681 671.289 157.987 CO(g) -110.52 -137.15 197.56 CO2(g) -392.51 -394.36 213.6 CH4(g) -74.81 -50.75 186.15 CH3OH(l) -238.7 -166.4 127 CH3OH(g) -200.7 -162.0 239.7 CCl4(l) -135.4 -65.27 216.4 CCl4(g) -102.9 -60.63 309.7 CHCl3(l) -103.1 -70.72 202 CHCl3(g) -103.1 -70.37 295.6 CS2(l) 89.70 65.27 151.3 CS2(g) 117.4 67.15 237.7 C2H2(g) 226.7 209.2 200.8 C2H4(g) 52.26 68.12 219.5 C2H6(g) -84.68 -32.9 229.5 CH3COOH(l) -484.5 -390 160 CH3COOH(g) -432.25 -374 282 C2H5OH(l) -277.7 -174.9 161 C2H5OH(g) -235.1 -186.6 282.6 C3H8(g) -103.85 -23.49 269.9 C6H6(g) 82.927 129.66 269.2 C6H6(l) 49.028 124.50 172.8 CH2Cl2(l) -121.5 -67.32 178 CH2Cl2(g) -92.47 -65.90 270.1 CH3Cl(g) -80.83 -57.40 234.5 C2H5Cl(l) -136.5 -59.41 190.8 C2H5Cl(g) -112.2 -60.46 275.9 C2N2(g) 308.9 297.4 241.8 HCN(l) 108.9 124.9 112.8 HCN(g) 135 124.7 201.7 CL Cl2(g) 0 0 222.96 Cl(g) 121.68 105.70 165.09 ClF(g) -54.48 -55.94 217.8 ClF3(g) -163 -123 281.5 Cl2O(g) 80.3 97.9 266.1 Cl2O7(l) 238 . . Cl2O7(g) 272 . . HCl(g) -92.307 -95.299 186.80 HClO4(l) -40.6 . . CR Cr(s) 0 0 23.8 Cr(g) 397 352 174.4 Cr2O3(s) -1140 -1058 81.2 CrO3(s) -589.5 . . (NH4)2Cr2O7(s) -1807 . . CO Co(s) 0 0 30.0 CoO(s) -237.9 -214.2 52.97 Co3O4(s) -891.2 -774.0 103 Co(NO3)2(s) -420.5 . . CU Cu(s) 0 0 33.15 Cu(g) 338.3 298.5 166.3 CuO(s) -157 -130 42.63 Cu2O(s) -169 -146 93.14 CuS(s) -53.1 -53.6 66.5 Cu2S(s) -79.5 -86.2 121 CuSO4(s) -771.36 -661.9 109 Cu(NO3)2(s) -303 . . F F2(g) 0 0 202.7 F(g) 78.99 61.92 158.64 F2O(g) -22 -4.6 247.3 HF(g) -271 -273 173.67 AU Au(s) 0 0 47.40 Au(g) 366.1 326.3 180.50 HE He(g) 0 0 126.15 H H2(g) 0 0 130.57 H(g) 217.97 203.26 114.60 H2O(l) -285.83 -237.18 69.91 H2O(g) -241.82 -228.59 188.71 H2O2(l) -187.8 -120.4 110 H2O2(g) -136.3 -105.6 233 HF(g) -271 -273 173.67 HCl(g) -92.307 -95.299 186.80 HBr(g) -36.4 -53.43 198.59 HI(g) 26.5 1.7 206.48 H2S(g) -20.6 -33.6 205.7 H2Se(g) 30 16 218.9 I I2(s) 0 0 116.14 I2(g) 62.438 19.36 260.6 I(g) 106.84 70.283 180.68 IF(g) 95.65 -118.5 236.1 ICl(g) 17.8 -5.44 247.44 IBr(g) 40.8 3.7 258.66 IF7(g) -943.9 -818.4 346 HI(g) 26.5 1.7 206.48 FE Fe(s) 0 0 27.3 Fe(g) 416 371 180.38 Fe2O3(s) -824.2 -742.2 87.40 Fe3O4(s) -1118 -1015 146 Fe(CO)5(l) -774.0 -705.4 338 Fe(CO)5(g) -733.9 -697.26 445.2 FeSeO3(s) -1200 . . FeO(s) -272 . . FeAsS(s) -42 -50 120 Fe(OH)2(s) -569.0 -486.6 88 Fe(OH)3(s) -823.0 -696.6 107 FeS(s) -100 -100 60.29 Fe3C(s) 25 20 105 PB Pb(s) 0 0 64.81 Pb(g) 195 162 175.26 PbO(s) -217.3 -187.9 68.70 PbO(s) -219.0 -188.9 66.5 Pb(OH)2(s) -515.9 . . PbS(s) -100 -98.7 91.2 Pb(NO3)2(s) -451.9 . . PbO2(s) -277 -217.4 68.6 PbCl2(s) -359.4 -314.1 136 LI Li(s) 0 0 28.0 Li(g) 155.1 122.1 138.67 LiH(s) -90.42 -69.96 25 Li(OH)(s) -487.23 -443.9 50.2 LiF(s) -612.1 -584.1 35.9 Li2CO3(s) -1215.6 -1132.4 90.4 MN Mn(s) 0 0 32.0 Mn(g) 281 238 173.6 MnO(s) -385.2 -362.9 59.71 MnO2(s) -520.03 -465.18 53.05 Mn2O3(s) -959.0 -881.2 110 Mn3O4(s) -1388 -1283 156 MG Mg(s) 0 0 32.68 Mg(g) 147.70 113.10 148.65 MgO(s) -601.70 -569.43 26.94 MgCO3(s) -1095.8 -1012.1 65.7 MgCl2(s) -641.32 -591.79 89.62 HG Hg(l) 0 0 76.02 Hg(g) 61.317 31.85 174.8 HgO(s) -90.83 -58.555 70.29 HgO(s) -90.46 -57.296 71.1 HgCl2(s) -224 -179 146 Hg2Cl2(s) -265.2 -210.78 192 HgS(s) -58.16 -50.6 82.4 HgS(s) -53.6 -47.7 88.3 HgSO4(s) -707.5 . . NE Ne(g) 0 0 146.33 N N2(g) 0 0 191.5 N(g) 472.704 455.579 153.19 NO(g) 90.25 86.57 210.65 NO2(g) 33.3 51.30 239.9 N2O(g) 82.05 104.2 219.7 N2O3(g) 83.72 139.4 312.2 N2O4(g) 9.16 97.82 304.2 N2O5(g) 11 115 356 NH3(g) -46.11 -16.5 192.3 N2H4(l) 50.63 149.2 121.2 N2H4(g) 95.4 159.3 238.4 NH4NO3(s) -365.6 -184.0 151.1 NH4Cl(s) -314.4 -201.5 94.6 NH4Br(s) -270.8 -175 113 NH4I(s) -201.4 -113 117 NH4NO2(s) -256 . . HNO3(l) -174.1 -80.79 155.6 HNO3(g) -135.1 -74.77 266.2 O O2(g) 0 0 205.03 O(g) 249.17 231.75 160.95 O3(g) 143 163 238.8 P P(s) 0 0 41.1 P(g) 58.91 24.5 280.0 P4(g) 314.6 278.3 163.08 PH3(g) 5.4 13 210.1 PCl3(g) -287 -268 311.7 PCl5(g) -375 -305 364.5 P4O6(s) -1640 . . P4O10(s) -2984 -2698 228.9 HPO3(s) -948.5 . . H3PO2(s) -604.6 . . H3PO3(s) -964.4 . . H3PO4(s) -1279 -1119 110.5 H3PO4(l) -1267 . . H2P2O7(s) -2241 . . POCl3(l) -597.1 -520.9 222.5 POCl3(g) -558.48 -512.96 325.3 K K(s) 0 0 63.6 K(g) 90.00 61.17 160.23 KF(s) -562.58 -533.12 66.57 KCl(s) -435.868 -408.32 82.68 KR Kr(g) 0 0 164.08 SI Si(s) 0 0 18.8 Si(g) 455.6 411 167.9 SiO2(s) -910.94 -856.67 41.84 SiH4(g) 34 56.9 204.5 H2SiO3(s) -1189 -1092 130 H4SiO4(s) -1481 -1333 190 SiF4(g) -1614.9 -1572.7 282.4 SiCl4(l) -687.0 -619.90 240 SiCl4(g) -657.01 -617.01 330.6 SiC(s) -65.3 -62.8 16.6 AG Ag(s) 0 0 42.55 Ag(g) 284.6 245.7 172.89 Ag2O(s) -31.0 -11.2 121 AgCl(s) -127.1 -109.8 96.2 Ag2S(s) -32.6 -40.7 144.0 NA Na(s) 0 0 51.0 Na(g) 108.7 78.11 153.62 Na2O(s) -415.9 -377 72.8 NaCl(s) -411.00 -384.03 72.38 S S(s) 0 0 31.8 S(g) 278.80 238.27 167.75 SO2(g) -296.83 -300.19 248.1 SO3(g) -395.7 -371.1 256.6 H2S(g) -20.6 -33.6 205.7 H2SO4(l) -813.989 690.101 156.90 H2S2O7(s) -1274 . . SF4(g) -774.9 -731.4 291.9 SF6(g) -1210 -1105 291.7 SCl2(l) -50 . . SCl2(g) -20 . . S2Cl2(l) -59.4 . . S2Cl2(g) -18 -32 331.4 SOCl2(l) -246 . . SOCl2(g) -213 -198 309.7 SO2Cl2(l) -394 . . SO2Cl2(g) -364 -320 311.8 SN Sn(s) 0 0 51.55 Sn(g) 302 267 168.38 SnO(s) -286 -257 56.5 SnO2(s) -580.7 -519.7 52.3 SnCl4(l) -511.2 -440.2 259 SnCl4(g) -471.5 -432.2 366 TI Ti(s) 0 0 30.6 Ti(g) 469.9 425.1 180.19 TiO2(s) -944.7 -889.5 50.33 TiCl4(l) -804.2 -737.2 252.3 TiCl4(g) -763.2 -726.8 354.8 W W(s) 0 0 32.6 W(g) 849.4 807.1 173.84 WO3(s) -842.87 -764.08 75.90 XE Xe(g) 0 0 169.68 ZN Zn(s) 0 0 41.6 Zn(g) 130.73 95.178 160.87 ZnO(s) -348.3 -318.3 43.64 ZnCl2(s) -415.1 -369.43 111.5 ZnS(s) -206.0 -201.3 57.7 ZnSO4(s) -982.8 -874.5 120 ZnCO3(s) -812.78 -731.57 82.4