Hafnium, Alpha (Hf) | Hf1(cr) | |||||||||||||
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 | -5.842 | 0. | 0. | 0. | |||||||
100 | 20.580 | 17.753 | -65.394 | -4.764 | 0. | 0. | 0. | |||||||
200 | 24.418 | 33.561 | -45.871 | -2.462 | 0. | 0. | 0. | |||||||
250 | 25.110 | 39.086 | -43.979 | -1.223 | 0. | 0. | 0. | |||||||
298.15 | 25.687 | 43.560 | 43.560 | 0. | 0. | 0. | 0. | |||||||
300 | 25.708 | 43.719 | 43.560 | 0.048 | 0. | 0. | 0. | |||||||
350 | 26.247 | 47.723 | 43.875 | 1.347 | 0. | 0. | 0. | |||||||
400 | 26.751 | 51.261 | 44.581 | 2.672 | 0. | 0. | 0. | |||||||
450 | 27.230 | 54.439 | 45.503 | 4.021 | 0. | 0. | 0. | |||||||
500 | 27.692 | 57.332 | 46.543 | 5.394 | 0. | 0. | 0. | |||||||
600 | 28.583 | 62.460 | 48.780 | 8.208 | 0. | 0. | 0. | |||||||
700 | 29.445 | 66.932 | 51.060 | 11.110 | 0. | 0. | 0. | |||||||
800 | 30.288 | 70.919 | 53.298 | 14.097 | 0. | 0. | 0. | |||||||
900 | 31.120 | 74.534 | 55.459 | 17.167 | 0. | 0. | 0. | |||||||
1000 | 31.943 | 77.856 | 57.535 | 20.320 | 0. | 0. | 0. | |||||||
1100 | 32.759 | 80.938 | 59.524 | 23.556 | 0. | 0. | 0. | |||||||
1200 | 33.572 | 83.824 | 61.430 | 26.872 | 0. | 0. | 0. | |||||||
1300 | 34.372 | 86.543 | 63.258 | 30.270 | 0. | 0. | 0. | |||||||
1400 | 35.064 | 89.115 | 65.014 | 33.741 | 0. | 0. | 0. | |||||||
1500 | 35.765 | 91.558 | 66.703 | 37.283 | 0. | 0. | 0. | |||||||
1600 | 36.466 | 93.889 | 68.330 | 40.894 | 0. | 0. | 0. | |||||||
1700 | 37.167 | 96.121 | 69.899 | 44.576 | 0. | 0. | 0. | |||||||
1800 | 37.868 | 98.265 | 71.416 | 48.328 | 0. | 0. | 0. | |||||||
1900 | 38.569 | 100.331 | 72.884 | 52.149 | 0. | 0. | 0. | |||||||
2000 | 39.269 | 102.327 | 74.306 | 56.041 | 0. | 0. | 0. | |||||||
2054.000 | 39.648 | 103.378 | 75.057 | 58.172 | ALPHA <--> BETA | |||||||||
2100 | 39.970 | 104.260 | 75.687 | 60.003 | 5.648 0.129 0.003 | |||||||||
2200 | 40.671 | 106.136 | 77.029 | 64.035 | -5.101 | 0.392 | -0.009 | |||||||
2300 | 41.372 | 107.959 | 78.334 | 68.138 | -4.576 | 0.629 | -0.014 | |||||||
2400 | 42.073 | 109.734 | 79.605 | 72.310 | -4.073 | 0.845 | -0.018 | |||||||
2500 | 42.774 | 111.466 | 80.845 | 76.552 | -3.676 | 1.042 | -0.022 | |||||||
PREVIOUS: | CURRENT: March 1979 | |||||||||||||
Hafnium, Alpha (Hf) | Hf1(cr) |
Download table in tab-delimited text format.