		J·K^-1 mol^-1						kJ·mol^-1
Niobium (Nb)								Nb₁(cr,l)

Enthalpy Reference Temperature = T_r = 298.15 K								Standard State Pressure = p° = 0.1 MPa
T/K		C_p^°		S^°		-[G^°-H^°(T_r)]/T		H-H^°(T_r)		_fH^°		_fG^°		log K_f
0		0.		0.		INFINITE		-5.241		0		0.		0.
100		17.439		12.558		57.153		-4.460		0.		0.		0.
200		23.091		26.878		38.685		-2.361		0.		0.		0.
250		24.154		32.159		36.867		-1.177		0.		0.		0.

298.15		24.694		36.464		36.464		0.		0.		0.		0.

300		24.711		36.616		36.464		0.046		0.		0.		0.
350		25.088		40.455		36.766		1.291		0.		0.		0.
400		25.393		43.826		37.442		2.553		0.		0.		0.
450		25.653		46.832		38.322		3.830		0.		0.		0.
500		25.899		49.548		39.311		5.118		0.		0.		0.

600		26.347		54.309		41.424		7.731		0.		0.		0.
700		26.769		58.403		43.564		10.387		0.		0.		0.
800		27.183		62.004		45.649		13.084		0.		0.		0.
900		27.593		65.230		47.648		15.823		0.		0.		0.
1000		27.999		68.158		49.555		18.603		0.		0.		0.

1100		28.405		70.846		51.370		21.423		0.		0.		0.
1200		28.798		73.334		53.098		24.284		0.		0.		0.
1300		29.179		75.654		54.745		27.182		0.		0.		0.
1400		29.589		77.831		56.317		30.120		0.		0.		0.
1500		30.062		79.888		57.820		33.102		0.		0.		0.

1600		30.606		81.846		59.261		36.135		0.		0.		0.
1700		31.221		83.719		60.645		39.226		0.		0.		0.
1800		31.903		85.523		61.977		42.381		0.		0.		0.
1900		32.639		87.267		63.263		45.608		0.		0.		0.
2000		33.430		88.961		64.506		48.911		0.		0.		0.

2100		34.275		90.612		65.710		52.296		0.		0.		0.
2200		35.187		92.228		66.878		55.768		0.		0.		0.
2300		36.192		93.813		68.015		59.336		0.		0.		0.
2400		37.317		95.377		69.123		63.010		0.		0.		0.
2500		38.635		96.926		70.204		66.805		0.		0.		0.

2600		40.233		98.471		71.261		70.745		0.		0.		0.
2700		42.283		100.027		72.298		74.868		0.		0.		0.

2750.000		43.423		100.813		72.809		77.011		CRYSTAL <--> LIQUID
2750.000		33.472		110.596		72.809		103.914		TRANSITION

2800		33.472		111.199		73.489		105.587		0.		0.		0.
2900		33.472		112.374		74.810		108.935		0.		0.		0.
3000		33.472		113.508		76.081		112.282		0.		0.		0.

3100		33.472		114.606		77.306		115.629		0.		0.		0.
3200		33.472		115.669		78.489		118.976		0.		0.		0.
3300		33.472		116.699		79.631		122.323		0.		0.		0.
3400		33.472		117.698		80.736		125.671		0.		0.		0.
3500		33.472		118.668		81.806		129.018		0.		0.		0.

3600		33.472		119.611		82.843		132.365		0.		0.		0.
3700		33.472		120.528		83.849		135.712		0.		0.		0.
3800		33.472		121.421		84.826		139.059		0.		0.		0.
3900		33.472		122.290		85.776		142.407		0.		0.		0.
4000		33.472		123.138		86.699		145.754		0.		0.		0.

4100		33.472		123.964		87.598		149.101		0.		0.		0.
4200		33.472		124.771		88.474		152.448		0.		0.		0.
4300		33.472		125.558		89.327		155.795		0.		0.		0.
4400		33.472		126.328		90.159		159.143		0.		0.		0.
4500		33.472		127.080		90.971		162.490		0.		0.		0.

4600		33.472		127.816		91.764		165.837		0.		0.		0.
4700		33.472		128.536		92.539		169.184		0.		0.		0.
4800		33.472		129.240		93.296		172.531		0.		0.		0.
4900		33.472		129.930		94.037		175.879		0.		0.		0.
5000		33.472		130.607		94.762		179.226		0.		0.		0.

5100		33.472		131.270		95.471		182.573		0.		0.		0.

5130.824		33.472		131.471		95.687		183.605		FUGACITY = 1 bar

5200		33.472		131.920		96.166		185.920		690.672 9.310 0.094
5300		33.472		132.557		96.846		189.267		-691.004		22.774		-0.224
5400		33.472		133.183		97.513		192.615		-691.309		36.240		-0.351

5600		33.472		134.400		98.809		199.309		-692.094		63.200		-0.590
5800		33.472		135.575		100.057		206.003		-692.992		90.191		-0.812
6000		33.472		136.709		101.260		212.698		-694.007		117.214		-1.020

PREVIOUS:								CURRENT: December 1973

Niobium (Nb)								Nb₁(cr,l)

Download table in tab-delimited text format.