Potassium (K2) K2(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 -10.738 127.110 127.110 INFINITE
100 36.488 208.920 283.115 -7.420 126.963 113.192 -59.125
200 37.533 234.619 253.150 -3.706 125.488 99.961 -26.107
 
298.15 37.962 249.690 249.690 0. 123.683 87.801 -15.382
 
300 37.969 249.925 249.691 0.070 123.644 87.579 -15.249
400 38.347 260.900 251.185 3.886 116.504 76.804 -10.030
500 38.698 269.496 254.018 7.739 114.141 67.157 -7.016
 
600 38.895 276.572 257.204 11.621 111.944 57.968 -5.047
700 38.769 282.563 260.411 15.507 109.838 49.139 -3.667
800 38.242 287.710 263.509 19.361 107.738 40.611 -2.652
900 37.358 292.167 266.452 23.143 105.556 32.350 -1.878
1000 36.231 296.046 269.222 26.824 103.211 24.340 -1.271
 
1100 34.982 299.441 271.817 30.386 -57.265 25.795 -1.225
1200 33.710 302.430 274.247 33.820 -57.988 33.377 -1.453
1300 32.482 305.079 276.519 37.129 -58.837 41.024 -1.648
1400 31.337 307.444 278.644 40.319 -59.805 48.742 -1.819
1500 30.292 309.570 280.637 43.400 -60.884 56.532 -1.969
 
1600 29.352 311.494 282.506 46.381 -62.064 64.397 -2.102
1700 28.514 313.248 284.264 49.274 -63.336 72.339 -2.223
1800 27.771 314.856 285.919 52.087 -64.693 80.359 -2.332
1900 27.114 316.340 287.482 54.831 -66.127 88.456 -2.432
2000 26.533 317.716 288.960 57.512 -67.634 96.631 -2.524
 
2100 26.020 318.998 290.360 60.140 -69.209 104.883 -2.609
2200 25.566 320.197 291.689 62.718 -70.851 113.211 -2.688
2300 25.162 321.325 292.953 65.254 -72.559 121.616 -2.762
2400 24.804 322.388 294.158 67.752 -74.332 130.096 -2.831
2500 24.485 323.394 295.307 70.217 -76.171 138.651 -2.897
 
2600 24.199 324.348 296.406 72.651 -78.078 147.282 -2.959
2700 23.944 325.257 297.458 75.057 -80.055 155.986 -3.018
2800 23.715 326.124 298.466 77.440 -82.107 164.766 -3.074
2900 23.508 326.952 299.434 79.801 -84.237 173.621 -3.127
3000 23.321 327.746 300.365 82.143 -86.449 182.549 -3.178
 
3100 23.153 328.508 301.261 84.466 -88.749 191.553 -3.228
3200 22.999 329.240 302.124 86.774 -91.142 200.633 -3.275
3300 22.860 329.946 302.956 89.066 -93.617 209.788 -3.321
3400 22.733 330.626 303.760 91.346 -96.209 219.021 -3.365
3500 22.617 331.284 304.537 93.613 -98.907 228.331 -3.408
 
3600 22.510 331.919 305.289 95.870 -101.727 237.720 -3.449
3700 22.412 332.535 306.017 98.116 -104.674 247.189 -3.490
3800 22.322 333.131 306.723 100.352 -107.755 256.740 -3.529
3900 22.240 333.710 307.407 102.580 -110.980 266.375 -3.568
4000 22.163 334.272 308.072 104.801 -114.344 276.091 -3.605
 
4100 22.092 334.818 308.718 107.013 -117.870 285.896 -3.642
4200 22.026 335.350 309.345 109.219 -121.572 295.788 -3.679
4300 21.966 335.868 309.956 111.419 -125.452 305.769 -3.714
4400 21.909 336.372 310.551 113.612 -128.965 315.791 -3.749
4500 21.856 336.864 311.130 115.801 -133.091 325.944 -3.783
 
4600 21.807 337.343 311.695 117.984 -137.397 336.192 -3.818
4700 21.761 337.812 312.245 120.162 -141.847 346.532 -3.851
4800 21.718 338.270 312.783 122.336 -146.267 356.944 -3.884
4900 21.677 338.717 313.308 124.506 -151.081 367.477 -3.917
5000 21.640 339.155 313.820 126.672 -156.086 378.110 -3.950
 
5100 21.604 339.583 314.321 128.834 -161.281 388.847 -3.983
5200 21.571 340.002 314.811 130.993 -166.670 399.684 -4.015
5300 21.539 340.412 315.290 133.148 -172.252 410.629 -4.047
5400 21.510 340.815 315.759 135.301 -178.027 421.681 -4.079
5500 21.482 341.209 316.218 137.450 -183.994 432.841 -4.111
 
5600 21.456 341.596 316.668 139.597 -190.151 444.111 -4.142
5700 21.431 341.976 317.109 141.741 -195.805 455.399 -4.173
5800 21.407 342.348 317.541 143.883 -202.245 466.878 -4.205
5900 21.385 342.714 317.964 146.023 -208.856 478.472 -4.236
6000 21.364 343.073 318.380 148.160 -215.634 490.178 -4.267
 
PREVIOUS: June 1962 (1 atm) CURRENT: December 1983 (1 bar)
 
Potassium (K2) K2(g)

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