Oxygen, Ion (O-) O1-(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 -6.571 105.814    
100 22.725 133.326 177.481 -4.415      
200 22.271 149.016 159.790 -2.155      
250 21.936 153.948 158.148 -1.050      
 
298.15 21.692 157.790 157.790 0. 101.846 91.638 -16.055
 
300 21.684 157.924 157.790 0.040 101.821 91.575 -15.945
350 21.500 161.252 158.054 1.119 101.123 89.922 -13.420
400 21.364 164.114 158.636 2.191 100.407 88.371 -11.540
450 21.262 166.624 159.387 3.256 99.675 86.910 -10.088
500 21.184 168.860 160.225 4.318 98.926 85.532 -8.935
 
600 21.075 172.712 161.995 6.430 97.380 82.997 -7.226
700 21.005 175.955 163.764 8.534 95.778 80.726 -6.024
800 20.958 178.757 165.467 10.632 94.129 78.688 -5.138
900 20.924 181.223 167.083 12.726 92.442 76.859 -4.461
1000 20.899 183.426 168.609 14.817 90.723 75.219 -3.929
 
1100 20.881 185.417 170.048 16.906 88.979 73.753 -3.502
1200 20.866 187.233 171.406 18.993 87.213 72.446 -3.154
1300 20.855 188.903 172.688 21.079 85.429 71.288 -2.864
1400 20.846 190.448 173.902 23.164 83.629 70.268 -2.622
1500 20.838 191.886 175.054 25.248 81.814 69.377 -2.416
 
1600 20.832 193.231 176.148 27.332 79.985 68.607 -2.240
1700 20.827 194.494 177.191 29.415 78.144 67.952 -2.088
1800 20.823 195.684 178.185 31.497 76.289 67.406 -1.956
1900 20.819 196.810 179.136 33.580 74.423 66.963 -1.841
2000 20.816 197.878 180.047 35.661 72.545 66.619 -1.740
 
2100 20.813 198.893 180.920 37.743 70.655 66.369 -1.651
2200 20.811 199.861 181.760 39.824 68.754 66.210 -1.572
2300 20.809 200.786 182.567 41.905 66.841 66.137 -1.502
2400 20.807 201.672 183.345 43.986 64.917 66.148 -1.440
2500 20.805 202.521 184.095 46.066 62.981 66.239 -1.384
 
2600 20.804 203.337 184.819 48.147 61.035 66.407 -1.334
2700 20.803 204.122 185.520 50.227 59.078 66.651 -1.289
2800 20.801 204.879 186.198 52.307 57.111 66.968 -1.249
2900 20.800 205.609 186.855 54.387 55.133 67.354 -1.213
3000 20.800 206.314 187.492 56.467 53.146 67.810 -1.181
 
3100 20.799 206.996 188.110 58.547 51.150 68.332 -1.151
3200 20.798 207.656 188.710 60.627 49.144 68.918 -1.125
3300 20.797 208.296 189.294 62.707 47.130 69.567 -1.101
3400 20.797 208.917 189.862 64.787 45.107 70.277 -1.080
3500 20.796 209.520 190.415 66.866 43.076 71.047 -1.060
 
3600 20.795 210.106 190.954 68.946 41.037 71.875 -1.043
3700 20.795 210.676 191.480 71.025 38.991 72.759 -1.027
3800 20.794 211.230 191.992 73.105 36.938 73.700 -1.013
3900 20.794 211.770 192.492 75.184 34.878 74.694 -1.000
4000 20.794 212.297 192.981 77.264 32.811 75.741 -0.989
 
4100 20.793 212.810 193.458 79.343 30.737 76.840 -0.979
4200 20.793 213.311 193.925 81.422 28.657 77.990 -0.970
4300 20.793 213.800 194.382 83.502 26.571 79.189 -0.962
4400 20.792 214.278 194.828 85.581 24.479 80.437 -0.955
4500 20.792 214.746 195.266 87.660 22.380 81.732 -0.949
 
4600 20.792 215.203 195.694 89.739 20.276 83.074 -0.943
4700 20.792 215.650 196.114 91.818 18.165 84.462 -0.939
4800 20.791 216.088 196.526 93.897 16.048 85.895 -0.935
4900 20.791 216.516 196.929 95.977 13.925 87.372 -0.931
5000 20.791 216.936 197.325 98.056 11.795 88.893 -0.929
 
5100 20.791 217.348 197.714 100.135 9.658 90.456 -0.926
5200 20.791 217.752 198.095 102.214 7.514 92.061 -0.925
5300 20.790 218.148 198.470 104.293 5.363 93.708 -0.924
5400 20.790 218.536 198.838 106.372 3.205 95.395 -0.923
5500 20.790 218.918 199.200 108.451 1.038 97.122 -0.922
 
5600 20.790 219.292 199.555 110.530 -1.137 98.889 -0.922
5700 20.790 219.660 199.905 112.609 -3.321 100.694 -0.923
5800 20.790 220.022 200.248 114.688 -5.515 102.538 -0.923
5900 20.790 220.377 200.586 116.767 -7.718 104.419 -0.924
6000 20.789 220.727 200.919 118.846 -9.932 106.339 -0.926
 
PREVIOUS: March 1977 (1 atm) CURRENT: September 1982 (1 bar)
 
Oxygen, Ion (O-) O1-(g)

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