Oxygen, Ion (O2+) O2+(g)
 
Enthalpy Reference Temperature = Tr = 298.15 K Standard State Pressure = p° = 0.1 MPa
  J·K-1 mol-1 kJ·mol-1  
T/K Cp° S° -[G°-H°(Tr)]/T H-H°(Tr) fH° fG° log Kf
0 0. 0. INFINITE -8.674 1164.700    
100 29.105 174.406 232.113 -5.771      
200 29.111 194.582 208.881 -2.860      
250 29.132 201.079 206.695 -1.404      
 
298.15 29.195 206.215 206.215 0. 1170.888 1164.315 -203.983
 
300 29.199 206.396 206.216 0.054 1170.926 1164.274 -202.718
350 29.342 210.906 206.572 1.517 1171.952 1163.084 -173.581
400 29.573 214.839 207.364 2.990 1172.970 1161.748 -151.709
450 29.882 218.339 208.393 4.476 1173.978 1160.285 -134.682
500 30.250 221.506 209.548 5.979 1174.978 1158.710 -121.050
 
600 31.078 227.093 212.019 9.045 1176.963 1155.269 -100.575
700 31.916 231.947 214.526 12.195 1178.937 1151.497 -85.926
800 32.687 236.260 216.978 15.426 1180.910 1147.442 -74.920
900 33.364 240.150 219.340 18.729 1182.886 1143.140 -66.346
1000 33.945 243.697 221.601 22.095 1184.869 1138.618 -59.475
 
1100 34.440 246.956 223.760 25.515 1186.859 1133.897 -53.844
1200 34.859 249.971 225.820 28.981 1188.854 1128.994 -49.144
1300 35.216 252.776 227.787 32.485 1190.854 1123.924 -45.160
1400 35.521 255.397 229.667 36.022 1192.856 1118.701 -41.739
1500 35.784 257.857 231.465 39.588 1194.859 1113.334 -38.770
 
1600 36.011 260.174 233.187 43.178 1196.861 1107.834 -36.167
1700 36.210 262.363 234.840 46.789 1198.859 1102.208 -33.867
1800 36.384 264.438 236.427 50.419 1200.851 1096.465 -31.819
1900 36.538 266.409 237.954 54.065 1202.837 1090.612 -29.983
2000 36.675 268.287 239.424 57.726 1204.813 1084.654 -28.328
 
2100 36.798 270.079 240.841 61.399 1206.780 1078.598 -26.829
2200 36.908 271.793 242.209 65.085 1208.736 1072.449 -25.463
2300 37.009 273.436 243.532 68.781 1210.680 1066.210 -24.214
2400 37.101 275.013 244.811 72.486 1212.611 1059.887 -23.068
2500 37.185 276.530 246.049 76.201 1214.529 1053.484 -22.011
 
2600 37.263 277.990 247.250 79.923 1216.434 1047.004 -21.035
2700 37.336 279.397 248.415 83.653 1218.325 1040.452 -20.129
2800 37.403 280.756 249.546 87.390 1220.203 1033.830 -19.286
2900 37.466 282.070 250.645 91.134 1222.068 1027.140 -18.501
3000 37.526 283.341 251.713 94.883 1223.919 1020.387 -17.767
 
3100 37.583 284.573 252.754 98.639 1225.757 1013.573 -17.079
3200 37.637 285.767 253.767 102.400 1227.583 1006.699 -16.433
3300 37.689 286.926 254.754 106.166 1229.397 999.768 -15.825
3400 37.740 288.051 255.717 109.938 1231.200 992.783 -15.252
3500 37.790 289.146 256.656 113.714 1232.991 985.744 -14.711
 
3600 37.838 290.211 257.574 117.496 1234.772 978.655 -14.200
3700 37.887 291.249 258.470 121.282 1236.542 971.515 -13.715
3800 37.936 292.260 259.346 125.073 1238.304 964.330 -13.256
3900 37.985 293.246 260.203 128.869 1240.056 957.097 -12.819
4000 38.035 294.208 261.041 132.670 1241.800 949.819 -12.403
 
4100 38.088 295.148 261.861 136.476 1243.536 942.498 -12.008
4200 38.142 296.067 262.665 140.288 1245.265 935.135 -11.630
4300 38.199 296.965 263.452 144.105 1246.987 927.731 -11.270
4400 38.258 297.844 264.224 147.927 1248.702 920.286 -10.925
4500 38.322 298.704 264.980 151.756 1250.412 912.802 -10.596
 
4600 38.389 299.547 265.723 155.592 1252.116 905.281 -10.280
4700 38.462 300.373 266.451 159.434 1253.815 897.723 -9.977
4800 38.539 301.184 267.166 163.284 1255.508 890.129 -9.687
4900 38.622 301.979 267.869 167.142 1257.197 882.500 -9.408
5000 38.711 302.761 268.559 171.009 1258.881 874.836 -9.139
 
5100 38.807 303.528 269.237 174.885 1260.561 867.139 -8.881
5200 38.910 304.283 269.904 178.771 1262.237 859.407 -8.633
5300 39.020 305.025 270.559 182.667 1263.910 851.645 -8.393
5400 39.138 305.755 271.204 186.575 1265.578 843.850 -8.163
5500 39.265 306.475 271.839 190.495 1267.242 836.025 -7.940
 
5600 39.400 307.183 272.464 194.428 1268.903 828.170 -7.725
5700 39.545 307.882 273.079 198.375 1270.559 820.285 -7.517
5800 39.699 308.571 273.685 202.338 1272.213 812.372 -7.316
5900 39.863 309.251 274.282 206.316 1273.862 804.428 -7.122
6000 40.036 309.922 274.871 210.310 1275.507 796.458 -6.934
 
PREVIOUS: September 1977 (1 atm) CURRENT: September 1977 (1 bar)
 
Oxygen, Ion (O2+) O2+(g)

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