Niobium, Ion (Nb+)								Nb1+(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		-8.015		1393.983
100		26.964		152.351		209.002		-5.665
200		28.783		171.684		186.012		-2.866
250		29.250		178.162		183.816		-1.414
298.15		29.421		183.333		183.333		0.		1402.954		1352.911		-237.024
300		29.423		183.515		183.333		0.054		1403.002		1352.600		-235.509
350		29.331		188.046		183.691		1.524		1404.265		1344.099		-200.596
400		29.059		191.947		184.485		2.985		1405.503		1335.419		-174.388
450		28.698		195.349		185.507		4.429		1406.710		1326.586		-153.986
500		28.323		198.353		186.645		5.854		1407.886		1317.620		-137.651
600		27.697		203.458		189.036		8.653		1410.151		1299.353		-113.119
700		27.316		207.696		191.407		11.402		1412.322		1280.714		-95.568
800		27.143		211.330		193.676		14.123		1414.425		1261.768		-82.385
900		27.099		214.524		195.819		16.835		1416.476		1242.562		-72.116
1000		27.118		217.380		197.834		19.545		1418.485		1223.131		-63.890
1100		27.159		219.966		199.731		22.259		1420.457		1203.499		-57.149
1200		27.203		222.331		201.517		24.977		1422.394		1183.690		-51.525
1300		27.242		224.510		203.203		27.700		1424.296		1163.721		-46.759
1400		27.281		226.530		204.798		30.426		1426.163		1143.606		-42.668
1500		27.324		228.414		206.310		33.156		1427.990		1123.360		-39.119
1600		27.378		230.179		207.747		35.891		1429.771		1102.993		-36.009
1700		27.448		231.841		209.116		38.632		1431.500		1082.516		-33.262
1800		27.537		233.412		210.423		41.381		1433.171		1061.939		-30.817
1900		27.647		234.904		211.672		44.140		1434.782		1041.271		-28.627
2000		27.780		236.325		212.870		46.911		1436.329		1020.519		-26.653
2100		27.934		237.684		214.019		49.697		1437.809		999.692		-24.866
2200		28.108		238.988		215.125		52.499		1439.217		978.796		-23.240
2300		28.300		240.242		216.190		55.319		1440.548		957.838		-21.753
2400		28.507		241.450		217.217		58.159		1441.793		936.823		-20.389
2500		28.726		242.618		218.210		61.021		1442.938		915.759		-19.134
2600		28.956		243.750		219.171		63.905		1443.961		894.651		-17.974
2700		29.193		244.847		220.101		66.812		1444.823		873.507		-16.899
2800		29.437		245.913		221.004		69.744		1419.114		852.819		-15.910
2900		29.686		246.950		221.881		72.700		1420.802		832.564		-14.996
3000		29.939		247.961		222.734		75.681		1422.514		812.251		-14.143
3100		30.196		248.947		223.563		78.688		1424.252		791.880		-13.343
3200		30.457		249.909		224.372		81.720		1426.016		771.453		-12.593
3300		30.723		250.851		225.160		84.779		1427.807		750.970		-11.887
3400		30.996		251.772		225.929		87.865		1429.624		730.433		-11.222
3500		31.276		252.674		226.680		90.979		1431.469		709.842		-10.594
3600		31.566		253.560		227.415		94.121		1433.343		689.197		-10.000
3700		31.868		254.429		228.133		97.292		1435.246		668.500		-9.438
3800		32.183		255.283		228.837		100.495		1437.179		647.752		-8.904
3900		32.513		256.123		229.525		103.729		1439.145		626.952		-8.397
4000		32.861		256.950		230.201		106.998		1441.145		606.101		-7.915
4100		33.229		257.766		230.863		110.302		1443.181		585.200		-7.456
4200		33.617		258.571		231.513		113.644		1445.255		564.248		-7.017
4300		34.027		259.367		232.152		117.027		1447.368		543.247		-6.599
4400		34.461		260.154		232.779		120.451		1449.524		522.196		-6.199
4500		34.917		260.934		233.396		123.919		1451.724		501.096		-5.817
4600		35.398		261.707		234.003		127.435		1453.971		479.946		-5.450
4700		35.902		262.473		234.601		131.000		1456.267		458.747		-5.098
4800		36.428		263.235		235.190		134.616		1458.615		437.498		-4.761
4900		36.977		263.991		235.770		138.286		1461.016		416.200		-4.437
5000		37.546		264.744		236.342		142.012		1463.473		394.853		-4.125
5100		38.133		265.493		236.906		145.796		1465.989		373.456		-3.825
5200		38.737		266.240		237.463		149.639		777.892		361.318		-3.629
5300		39.356		266.983		238.013		153.544		780.196		353.285		-3.482
5400		39.985		267.725		238.556		157.511		782.589		345.204		-3.339
5500		40.624		268.464		239.093		161.541		784.972		337.082		-3.201
5600		41.268		269.202		239.624		165.636		787.392		328.917		-3.068
5700		41.915		269.938		240.150		169.795		789.847		320.708		-2.939
5800		42.561		270.673		240.670		174.019		792.339		312.456		-2.814
5900		43.203		271.406		241.184		178.307		794.866		304.160		-2.693
6000		43.839		272.137		241.694		182.659		797.428		295.822		-2.575
PREVIOUS:								CURRENT: March 1984 (1 bar)
Niobium, Ion (Nb+)								Nb1+(g)

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