Niobium Oxide (NbO2) | Nb1O2(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) | ![]() |
![]() |
log Kf | |||||||
0 | 0. | 0. | INFINITE | -11.254 | -197.325 | -197.325 | INFINITE | |||||||
100 | 35.385 | 230.299 | 309.095 | -7.880 | -197.637 | -202.080 | 105.556 | |||||||
200 | 39.819 | 256.260 | 276.805 | -4.109 | -198.875 | -206.055 | 53.816 | |||||||
250 | 41.903 | 265.368 | 273.633 | -2.066 | -199.475 | -207.779 | 43.413 | |||||||
298.15 | 43.907 | 272.921 | 272.921 | 0. | -199.995 | -209.330 | 36.674 | |||||||
300 | 43.982 | 273.193 | 272.922 | 0.081 | -200.014 | -209.388 | 36.458 | |||||||
350 | 45.916 | 280.121 | 273.465 | 2.330 | -200.488 | -210.912 | 31.477 | |||||||
400 | 47.622 | 286.366 | 274.693 | 4.669 | -200.905 | -212.373 | 27.733 | |||||||
450 | 49.082 | 292.062 | 276.311 | 7.088 | -201.280 | -213.783 | 24.815 | |||||||
500 | 50.311 | 297.299 | 278.152 | 9.573 | -201.625 | -215.154 | 22.477 | |||||||
600 | 52.201 | 306.649 | 282.141 | 14.705 | -202.266 | -217.799 | 18.961 | |||||||
700 | 53.531 | 314.801 | 286.237 | 19.995 | -202.886 | -220.338 | 16.442 | |||||||
800 | 54.485 | 322.015 | 290.267 | 25.398 | -203.517 | -222.789 | 14.547 | |||||||
900 | 55.184 | 328.475 | 294.160 | 30.884 | -204.176 | -225.159 | 13.068 | |||||||
1000 | 55.708 | 334.317 | 297.888 | 36.429 | -204.872 | -227.453 | 11.881 | |||||||
1100 | 56.110 | 339.647 | 301.446 | 42.021 | -205.609 | -229.676 | 10.906 | |||||||
1200 | 56.424 | 344.543 | 304.836 | 47.649 | -206.391 | -231.829 | 10.091 | |||||||
1300 | 56.674 | 349.070 | 308.067 | 53.304 | -207.217 | -233.916 | 9.399 | |||||||
1400 | 56.875 | 353.277 | 311.147 | 58.982 | -208.091 | -235.937 | 8.803 | |||||||
1500 | 57.039 | 357.207 | 314.088 | 64.678 | -209.018 | -237.895 | 8.284 | |||||||
1600 | 57.175 | 360.893 | 316.900 | 70.388 | -210.007 | -239.788 | 7.828 | |||||||
1700 | 57.288 | 364.362 | 319.591 | 76.112 | -211.067 | -241.617 | 7.424 | |||||||
1800 | 57.384 | 367.640 | 322.170 | 81.846 | -212.205 | -243.382 | 7.063 | |||||||
1900 | 57.466 | 370.744 | 324.645 | 87.588 | -213.428 | -245.081 | 6.738 | |||||||
2000 | 57.536 | 373.694 | 327.025 | 93.338 | -214.743 | -246.713 | 6.443 | |||||||
2100 | 57.597 | 376.503 | 329.314 | 99.095 | -216.157 | -248.277 | 6.176 | |||||||
2200 | 57.649 | 379.183 | 331.521 | 104.857 | -217.675 | -249.771 | 5.930 | |||||||
2300 | 57.695 | 381.747 | 333.649 | 110.625 | -219.306 | -251.194 | 5.705 | |||||||
2400 | 57.736 | 384.203 | 335.705 | 116.396 | -221.062 | -252.544 | 5.496 | |||||||
2500 | 57.772 | 386.561 | 337.692 | 122.172 | -222.956 | -253.817 | 5.303 | |||||||
2600 | 57.804 | 388.827 | 339.616 | 127.951 | -225.013 | -255.012 | 5.123 | |||||||
2700 | 57.832 | 391.009 | 341.479 | 133.732 | -227.272 | -256.123 | 4.955 | |||||||
2800 | 57.858 | 393.113 | 343.286 | 139.517 | -256.144 | -256.662 | 4.788 | |||||||
2900 | 57.881 | 395.144 | 345.039 | 145.304 | -257.662 | -256.655 | 4.623 | |||||||
3000 | 57.902 | 397.106 | 346.742 | 151.093 | -259.197 | -256.593 | 4.468 | |||||||
3100 | 57.921 | 399.005 | 348.398 | 156.884 | -260.749 | -256.480 | 4.322 | |||||||
3200 | 57.938 | 400.845 | 350.008 | 162.677 | -262.317 | -256.318 | 4.184 | |||||||
3300 | 57.953 | 402.628 | 351.576 | 168.472 | -263.901 | -256.107 | 4.054 | |||||||
3400 | 57.967 | 404.358 | 353.103 | 174.268 | -265.500 | -255.846 | 3.931 | |||||||
3500 | 57.981 | 406.038 | 354.591 | 180.065 | -267.113 | -255.539 | 3.814 | |||||||
3600 | 57.992 | 407.672 | 356.043 | 185.864 | -268.741 | -255.185 | 3.703 | |||||||
3700 | 58.004 | 409.261 | 357.460 | 191.664 | -270.382 | -254.787 | 3.597 | |||||||
3800 | 58.014 | 410.808 | 358.844 | 197.465 | -272.037 | -254.342 | 3.496 | |||||||
3900 | 58.023 | 412.315 | 360.196 | 203.266 | -273.705 | -253.854 | 3.400 | |||||||
4000 | 58.032 | 413.784 | 361.517 | 209.069 | -275.385 | -253.325 | 3.308 | |||||||
4100 | 58.040 | 415.217 | 362.809 | 214.873 | -277.077 | -252.752 | 3.220 | |||||||
4200 | 58.047 | 416.616 | 364.074 | 220.677 | -278.781 | -252.138 | 3.136 | |||||||
4300 | 58.055 | 417.982 | 365.312 | 226.482 | -280.497 | -251.483 | 3.055 | |||||||
4400 | 58.061 | 419.317 | 366.524 | 232.288 | -282.224 | -250.789 | 2.977 | |||||||
4500 | 58.067 | 420.622 | 367.712 | 238.094 | -283.963 | -250.056 | 2.903 | |||||||
4600 | 58.073 | 421.898 | 368.876 | 243.901 | -285.713 | -249.283 | 2.831 | |||||||
4700 | 58.078 | 423.147 | 370.017 | 249.709 | -287.476 | -248.472 | 2.761 | |||||||
4800 | 58.083 | 424.370 | 371.137 | 255.517 | -289.250 | -247.623 | 2.695 | |||||||
4900 | 58.088 | 425.567 | 372.236 | 261.326 | -291.036 | -246.737 | 2.630 | |||||||
5000 | 58.092 | 426.741 | 373.314 | 267.135 | -292.835 | -245.815 | 2.568 | |||||||
5100 | 58.097 | 427.891 | 374.373 | 272.944 | -294.647 | -244.856 | 2.508 | |||||||
5200 | 58.101 | 429.020 | 375.413 | 278.754 | -987.145 | -234.553 | 2.356 | |||||||
5300 | 58.104 | 430.126 | 376.435 | 284.564 | -989.316 | -220.059 | 2.169 | |||||||
5400 | 58.108 | 431.212 | 377.439 | 290.375 | -991.477 | -205.529 | 1.988 | |||||||
5500 | 58.111 | 432.279 | 378.427 | 296.186 | -993.725 | -190.954 | 1.814 | |||||||
5600 | 58.114 | 433.326 | 379.398 | 301.997 | -996.019 | -176.337 | 1.645 | |||||||
5700 | 58.117 | 434.354 | 380.353 | 307.809 | -998.359 | -161.679 | 1.482 | |||||||
5800 | 58.120 | 435.365 | 381.293 | 313.621 | -1000.745 | -146.979 | 1.324 | |||||||
5900 | 58.123 | 436.359 | 382.218 | 319.433 | -1003.180 | -132.240 | 1.171 | |||||||
6000 | 58.126 | 437.336 | 383.128 | 325.245 | -1005.664 | -117.456 | 1.023 | |||||||
PREVIOUS: December 1973 (1 atm) | CURRENT: December 1973 (1 bar) | |||||||||||||
Niobium Oxide (NbO2) | Nb1O2(g) |
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