Tantalum Oxide (TaO2) O2Ta1(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 -11.262 -197.730 -197.730 INFINITE
100 35.386 237.647 316.528 -7.888 -198.255 -203.075 106.076
200 39.861 263.617 284.196 -4.116 -199.646 -207.356 54.156
250 41.977 272.738 281.019 -2.070 -200.283 -209.208 43.712
 
298.15 44.000 280.306 280.306 0. -200.832 -210.876 36.945
 
300 44.076 280.578 280.306 0.081 -200.852 -210.938 36.728
350 46.019 287.521 280.850 2.335 -201.348 -212.579 31.726
400 47.726 293.780 282.082 4.679 -201.784 -214.153 27.966
450 49.181 299.488 283.703 7.103 -202.176 -215.675 25.035
500 50.404 304.735 285.548 9.594 -202.538 -217.155 22.686
 
600 52.279 314.100 289.545 14.733 -203.218 -220.015 19.154
700 53.596 322.264 293.648 20.031 -203.879 -222.762 16.623
800 54.538 329.486 297.685 25.440 -204.540 -225.414 14.718
900 55.229 335.951 301.584 30.930 -205.212 -227.983 13.232
1000 55.746 341.798 305.318 36.480 -205.903 -230.477 12.039
 
1100 56.143 347.131 308.880 42.076 -206.627 -232.899 11.059
1200 56.453 352.030 312.275 47.706 -207.393 -235.254 10.240
1300 56.701 356.559 315.509 53.364 -208.202 -237.543 9.545
1400 56.903 360.768 318.593 59.045 -209.045 -239.769 8.946
1500 57.073 364.700 321.538 64.744 -209.914 -241.933 8.425
 
1600 57.218 368.388 324.352 70.458 -210.804 -244.039 7.967
1700 57.348 371.861 327.045 76.187 -211.722 -246.088 7.561
1800 57.467 375.142 329.627 81.928 -212.686 -248.083 7.199
1900 57.581 378.253 332.105 87.680 -213.712 -250.021 6.874
2000 57.692 381.209 334.487 93.444 -214.804 -251.904 6.579
 
2100 57.805 384.026 336.779 99.219 -215.960 -253.731 6.311
2200 57.922 386.718 338.989 105.005 -217.180 -255.501 6.066
2300 58.043 389.296 341.120 110.803 -218.466 -257.215 5.842
2400 58.170 391.768 343.179 116.614 -219.822 -258.871 5.634
2500 58.305 394.146 345.171 122.437 -221.254 -260.469 5.442
 
2600 58.447 396.435 347.099 128.275 -222.768 -262.008 5.264
2700 58.596 398.644 348.967 134.127 -224.376 -263.486 5.097
2800 58.753 400.778 350.780 139.994 -226.087 -264.904 4.942
2900 58.917 402.842 352.540 145.878 -227.914 -266.259 4.796
3000 59.088 404.843 354.250 151.778 -229.875 -267.548 4.658
 
3100 59.264 406.783 355.913 157.696 -231.985 -268.769 4.529
3200 59.445 408.667 357.533 163.631 -234.265 -269.920 4.406
3300 59.631 410.499 359.110 169.585 -273.190 -270.526 4.282
3400 59.820 412.282 360.648 175.557 -275.449 -270.411 4.154
3500 60.011 414.019 362.148 181.549 -277.706 -270.230 4.033
 
3600 60.205 415.712 363.612 187.560 -279.958 -269.985 3.917
3700 60.398 417.365 365.043 193.590 -282.206 -269.677 3.807
3800 60.592 418.978 366.441 199.639 -284.449 -269.308 3.702
3900 60.785 420.554 367.809 205.708 -286.686 -268.880 3.601
4000 60.976 422.096 369.147 211.796 -288.918 -268.395 3.505
 
4100 61.165 423.604 370.456 217.903 -291.143 -267.854 3.413
4200 61.350 425.080 371.739 224.029 -293.363 -267.260 3.324
4300 61.532 426.525 372.997 230.173 -295.576 -266.612 3.239
4400 61.710 427.942 374.230 236.335 -297.784 -265.913 3.157
4500 61.882 429.331 375.439 242.515 -299.986 -265.164 3.078
 
4600 62.050 430.693 376.625 248.712 -302.184 -264.367 3.002
4700 62.212 432.029 377.790 254.925 -304.377 -263.520 2.929
4800 62.368 433.340 378.933 261.154 -306.567 -262.628 2.858
4900 62.518 434.628 380.057 267.398 -308.755 -261.689 2.790
5000 62.662 435.892 381.161 273.657 -310.940 -260.706 2.724
 
5100 62.799 437.135 382.246 279.931 -313.126 -259.680 2.660
5200 62.930 438.355 383.314 286.217 -315.312 -258.612 2.598
5300 63.053 439.555 384.364 292.516 -317.499 -257.499 2.538
5400 63.170 440.735 385.397 298.827 -319.691 -256.347 2.480
5500 63.280 441.895 386.413 305.150 -321.886 -255.155 2.423
 
5600 63.384 443.036 387.414 311.483 -324.088 -253.920 2.368
5700 63.480 444.159 388.400 317.826 -326.298 -252.648 2.315
5800 63.570 445.264 389.371 324.179 -1067.272 -248.535 2.238
5900 63.653 446.351 390.327 330.540 -1069.715 -234.400 2.075
6000 63.730 447.422 391.270 336.910 -1072.215 -220.220 1.917
 
PREVIOUS: December 1973 (1 atm) CURRENT: December 1973 (1 bar)
 
Tantalum Oxide (TaO2) O2Ta1(g)

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