Niobium Oxide (NbO2) | Nb1O2(cr,l) | |||||||||||||
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) | ![]() |
![]() |
log Kf | |||||||
0 | 0. | 0. | INFINITE | -9.271 | -790.308 | -790.308 | INFINITE | |||||||
100 | 21.143 | 11.275 | 96.297 | -8.502 | -793.224 | -775.765 | 405.218 | |||||||
200 | 44.918 | 33.967 | 59.417 | -5.090 | -794.821 | -757.542 | 197.850 | |||||||
298.15 | 57.452 | 54.506 | 54.506 | 0. | -794.960 | -739.175 | 129.500 | |||||||
300 | 57.605 | 54.862 | 54.507 | 0.106 | -794.954 | -738.829 | 128.642 | |||||||
400 | 63.547 | 72.327 | 56.848 | 6.191 | -794.348 | -720.199 | 94.048 | |||||||
500 | 67.739 | 86.967 | 61.447 | 12.760 | -793.403 | -701.766 | 73.313 | |||||||
600 | 71.651 | 99.665 | 66.781 | 19.730 | -792.205 | -683.547 | 59.508 | |||||||
700 | 75.555 | 111.003 | 72.302 | 27.090 | -790.755 | -665.549 | 49.664 | |||||||
800 | 79.496 | 121.348 | 77.795 | 34.843 | -789.037 | -647.776 | 42.295 | |||||||
900 | 83.479 | 130.941 | 83.173 | 42.991 | -787.033 | -630.236 | 36.578 | |||||||
1000 | 87.500 | 139.945 | 88.405 | 51.540 | -784.726 | -612.934 | 32.016 | |||||||
1090.000 | 91.144 | 147.640 | 92.980 | 59.579 | I <--> II | |||||||||
1090.000 | 92.885 | 150.780 | 92.980 | 63.001 | TRANSITION | |||||||||
1100 | 92.885 | 151.628 | 93.510 | 63.930 | -778.665 | -595.911 | 28.297 | |||||||
1200 | 92.885 | 159.710 | 98.694 | 73.219 | -775.786 | -579.425 | 25.222 | |||||||
1200.000 | 92.885 | 159.710 | 98.694 | 73.219 | II <--> III | |||||||||
1200.000 | 83.052 | 159.710 | 98.694 | 73.219 | TRANSITION | |||||||||
1300 | 83.052 | 166.358 | 103.647 | 81.524 | -773.962 | -563.136 | 22.627 | |||||||
1400 | 83.052 | 172.513 | 108.349 | 89.829 | -772.208 | -546.984 | 20.408 | |||||||
1500 | 83.052 | 178.243 | 112.820 | 98.135 | -770.526 | -530.956 | 18.490 | |||||||
1600 | 83.052 | 183.603 | 117.078 | 106.440 | -768.921 | -515.038 | 16.814 | |||||||
1700 | 83.052 | 188.638 | 121.141 | 114.745 | -767.398 | -499.217 | 15.339 | |||||||
1800 | 83.052 | 193.385 | 125.024 | 123.050 | -765.965 | -483.484 | 14.030 | |||||||
1900 | 83.052 | 197.875 | 128.741 | 131.355 | -764.626 | -467.827 | 12.861 | |||||||
2000 | 83.052 | 202.135 | 132.305 | 139.661 | -763.386 | -452.239 | 11.811 | |||||||
2100 | 83.052 | 206.188 | 135.728 | 147.966 | -762.251 | -436.710 | 10.863 | |||||||
2175.000 | 83.052 | 209.102 | 138.208 | 154.195 | III <--> LIQUID | |||||||||
2175.000 | 94.140 | 251.423 | 138.208 | 246.243 | TRANSITION | |||||||||
2200 | 94.140 | 252.499 | 139.500 | 248.596 | -668.901 | -422.291 | 10.026 | |||||||
2300 | 94.140 | 256.683 | 144.505 | 258.010 | -666.886 | -411.128 | 9.337 | |||||||
2400 | 94.140 | 260.690 | 149.263 | 267.424 | -664.998 | -400.049 | 8.707 | |||||||
2500 | 94.140 | 264.533 | 153.798 | 276.838 | -663.254 | -389.046 | 8.129 | |||||||
2600 | 94.140 | 268.225 | 158.128 | 286.252 | -661.676 | -378.109 | 7.596 | |||||||
2700 | 94.140 | 271.778 | 162.272 | 295.666 | -660.303 | -367.229 | 7.104 | |||||||
2800 | 94.140 | 275.202 | 166.245 | 305.080 | -685.546 | -355.912 | 6.640 | |||||||
2900 | 94.140 | 278.505 | 170.059 | 314.494 | -683.437 | -344.177 | 6.199 | |||||||
3000 | 94.140 | 281.697 | 173.727 | 323.908 | -681.347 | -332.514 | 5.790 | |||||||
PREVIOUS: | CURRENT: December 1973 | |||||||||||||
Niobium Oxide (NbO2) | Nb1O2(cr,l) |
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