Hydrogen, Ion (H2+) H2+(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 -8.583 1488.358 1488.358 INFINITE
100 27.510 110.873 168.264 -5.739 1490.282 1489.440 -778.004
200 29.175 130.698 145.046 -2.870 1492.536 1487.743 -388.559
 
298.15 29.288 142.370 142.370 0. 1494.671 1484.931 -260.154
 
300 29.292 142.551 142.371 0.054 1494.711 1484.870 -258.539
400 29.525 151.004 143.522 2.993 1496.822 1481.272 -193.434
500 30.016 157.641 145.705 5.968 1498.953 1477.139 -154.316
 
600 30.719 163.173 148.167 9.003 1501.138 1472.571 -128.199
700 31.529 167.968 150.661 12.115 1503.391 1467.633 -109.516
800 32.357 172.233 153.095 15.310 1505.711 1462.367 -95.483
900 33.152 176.090 155.439 18.586 1508.091 1456.807 -84.551
1000 33.887 179.622 157.684 21.938 1510.518 1450.979 -75.791
 
1100 34.559 182.884 159.828 25.361 1512.981 1444.906 -68.613
1200 35.168 185.917 161.877 28.848 1515.468 1438.608 -62.621
1300 35.720 188.754 163.837 32.393 1517.971 1432.102 -57.543
1400 36.226 191.420 165.713 35.990 1520.483 1425.402 -53.182
1500 36.691 193.935 167.511 39.636 1522.999 1418.523 -49.397
 
1600 37.123 196.317 169.238 43.327 1525.518 1411.476 -46.080
1700 37.530 198.580 170.898 47.060 1528.036 1404.271 -43.148
1800 37.918 200.737 172.496 50.833 1530.553 1396.918 -40.538
1900 38.291 202.797 174.037 54.643 1533.069 1389.426 -38.198
2000 38.654 204.770 175.525 58.491 1535.585 1381.800 -36.089
 
2100 39.011 206.665 176.963 62.374 1538.102 1374.049 -34.178
2200 39.365 208.488 178.355 66.293 1540.620 1366.178 -32.437
2300 39.716 210.245 179.703 70.247 1543.142 1358.193 -30.846
2400 40.065 211.943 181.011 74.236 1545.668 1350.097 -29.384
2500 40.413 213.585 182.282 78.260 1548.201 1341.896 -28.037
 
2600 40.757 215.177 183.516 82.318 1550.740 1333.594 -26.792
2700 41.096 216.722 184.718 86.411 1553.287 1325.194 -25.637
2800 41.427 218.222 185.888 90.537 1555.843 1316.699 -24.563
2900 41.746 219.682 187.028 94.696 1558.406 1308.113 -23.562
3000 42.050 221.102 188.140 98.886 1560.978 1299.439 -22.625
 
3100 42.335 222.486 189.226 103.105 1563.556 1290.678 -21.748
3200 42.599 223.834 190.286 107.352 1566.139 1281.834 -20.924
3300 42.836 225.148 191.323 111.624 1568.726 1272.910 -20.148
3400 43.045 226.430 192.337 115.919 1571.315 1263.907 -19.418
3500 43.222 227.681 193.329 120.232 1573.902 1254.828 -18.727
 
3600 43.366 228.901 194.300 124.562 1576.486 1245.675 -18.074
3700 43.475 230.090 195.251 128.904 1579.062 1236.450 -17.456
3800 43.547 231.251 196.183 133.256 1581.628 1227.156 -16.868
3900 43.583 232.382 197.097 137.612 1584.180 1217.795 -16.311
4000 43.582 233.486 197.993 141.971 1586.715 1208.368 -15.780
 
4100 43.545 234.562 198.872 146.328 1589.229 1198.878 -15.274
4200 43.473 235.610 199.734 150.679 1591.720 1189.327 -14.791
4300 43.367 236.632 200.581 155.021 1594.183 1179.717 -14.331
4400 43.229 237.627 201.411 159.351 1596.616 1170.050 -13.890
4500 43.060 238.597 202.227 163.666 1599.017 1160.328 -13.469
 
4600 42.862 239.541 203.028 167.962 1601.381 1150.554 -13.065
4700 42.639 240.461 203.815 172.237 1603.708 1140.728 -12.678
4800 42.391 241.356 204.587 176.489 1605.994 1130.853 -12.306
4900 42.122 242.227 205.347 180.715 1608.239 1120.931 -11.949
5000 41.834 243.075 206.093 184.913 1610.440 1110.964 -11.606
 
5100 41.528 243.901 206.826 189.081 1612.597 1100.952 -11.276
5200 41.208 244.704 207.547 193.218 1614.708 1090.900 -10.958
5300 40.875 245.486 208.255 197.322 1616.772 1080.807 -10.652
5400 40.532 246.247 208.952 201.393 1618.790 1070.675 -10.357
5500 40.179 246.987 209.637 205.428 1620.760 1060.506 -10.072
 
5600 39.820 247.708 210.310 209.428 1622.683 1050.303 -9.797
5700 39.456 248.410 210.972 213.392 1624.559 1040.065 -9.531
5800 39.087 249.093 211.624 217.319 1626.389 1029.795 -9.274
5900 38.717 249.758 212.265 221.209 1628.173 1019.493 -9.026
6000 38.346 250.405 212.895 225.063 1629.912 1009.161 -8.786
 
PREVIOUS: September 1977 (1 atm) CURRENT: September 1977 (1 bar)
 
Hydrogen, Ion (H2+) H2+(g)

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