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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