fH°fG°| Iron Oxide, Hematite (Fe2O3) | Fe2O3(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 | -15.560 | -819.025 | -819.025 | INFINITE | |||||||
| 100 | 31.497 | 14.611 | 159.795 | -14.518 | -823.186 | -797.438 | 416.539 | |||||||
| 200 | 76.567 | 51.279 | 96.132 | -8.970 | -825.542 | -770.573 | 201.253 | |||||||
| 298.15 | 103.763 | 87.400 | 87.400 | 0. | -825.503 | -743.523 | 130.262 | |||||||
| 300 | 104.182 | 88.043 | 87.402 | 0.192 | -825.485 | -743.014 | 129.370 | |||||||
| 400 | 120.123 | 120.299 | 91.691 | 11.443 | -823.947 | -715.727 | 93.464 | |||||||
| 500 | 131.796 | 148.400 | 100.284 | 24.058 | -821.626 | -688.929 | 71.972 | |||||||
| 600 | 141.168 | 173.270 | 110.415 | 37.713 | -818.882 | -662.642 | 57.688 | |||||||
| 700 | 149.729 | 195.675 | 121.020 | 52.259 | -815.870 | -636.837 | 47.521 | |||||||
| 800 | 158.218 | 216.225 | 131.653 | 67.658 | -812.705 | -611.477 | 39.925 | |||||||
| 900 | 166.490 | 235.340 | 142.124 | 83.894 | -809.634 | -586.510 | 34.040 | |||||||
| 950.000 | 170.570 | 244.451 | 147.271 | 92.321 | I <--> II | |||||||||
| 950.000 | 150.624 | 245.156 | 147.271 | 92.990 | TRANSITION | |||||||||
| 1000 | 150.624 | 252.882 | 152.360 | 100.522 | -807.695 | -561.866 | 29.349 | |||||||
| 1050.000 | 150.624 | 260.231 | 157.323 | 108.053 | II <--> III | |||||||||
| 1050.000 | 140.407 | 260.231 | 157.323 | 108.053 | TRANSITION | |||||||||
| 1100 | 140.775 | 266.771 | 162.150 | 115.083 | -809.682 | -537.171 | 25.508 | |||||||
| 1200 | 141.511 | 279.052 | 171.388 | 129.197 | -811.071 | -512.374 | 22.303 | |||||||
| 1300 | 142.248 | 290.408 | 180.112 | 143.385 | -809.145 | -487.562 | 19.590 | |||||||
| 1400 | 142.984 | 300.976 | 188.372 | 157.647 | -807.358 | -462.893 | 17.271 | |||||||
| 1500 | 143.720 | 310.866 | 196.212 | 171.982 | -805.706 | -438.347 | 15.265 | |||||||
| 1600 | 144.566 | 320.170 | 203.671 | 186.397 | -804.180 | -413.906 | 13.513 | |||||||
| 1700 | 145.266 | 328.956 | 210.785 | 200.890 | -804.681 | -389.520 | 11.968 | |||||||
| 1800 | 145.780 | 337.275 | 217.583 | 215.445 | -804.094 | -365.117 | 10.595 | |||||||
| 1900 | 146.231 | 345.169 | 224.092 | 230.045 | -831.859 | -339.338 | 9.329 | |||||||
| 2000 | 146.789 | 352.684 | 230.335 | 244.696 | -832.056 | -313.410 | 8.185 | |||||||
| 2100 | 147.277 | 359.858 | 236.334 | 259.400 | -832.235 | -287.474 | 7.151 | |||||||
| 2200 | 147.695 | 366.719 | 242.105 | 274.149 | -832.403 | -261.528 | 6.209 | |||||||
| 2300 | 148.044 | 373.292 | 247.667 | 288.937 | -832.566 | -235.576 | 5.350 | |||||||
| 2400 | 148.323 | 379.599 | 253.034 | 303.756 | -832.731 | -209.617 | 4.562 | |||||||
| 2500 | 148.532 | 385.658 | 258.219 | 318.599 | -832.905 | -183.650 | 3.837 | |||||||
| PREVIOUS: | CURRENT: June 1965 | |||||||||||||
| Iron Oxide, Hematite (Fe2O3) | Fe2O3(cr) | |||||||||||||
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