fH°fG°| Phosphoric Acid (H3PO4) | H3O4P1(l) | |||||||||||||
| 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 | ||||||||||||||
| 100 | ||||||||||||||
| 200 | ||||||||||||||
| 298.15 | 145.047 | 150.775 | 150.775 | 0. | -1271.663 | -1123.597 | 196.849 | |||||||
| 300 | 145.603 | 151.673 | 150.777 | 0.269 | -1271.627 | -1122.678 | 195.476 | |||||||
| 315.500 | 150.273 | 159.125 | 151.005 | 2.562 | CRYSTAL <--> LIQUID | |||||||||
| 400 | 175.728 | 197.687 | 156.848 | 16.335 | 1269.114 1073.263 140.154 | |||||||||
| 500 | 205.853 | 240.135 | 169.306 | 35.414 | -1263.169 | -1024.930 | 107.074 | |||||||
| 600 | 235.978 | 280.330 | 184.486 | 57.506 | -1254.423 | -978.057 | 85.147 | |||||||
| 700 | 266.102 | 318.968 | 200.954 | 82.610 | -1242.867 | -932.871 | 69.612 | |||||||
| 800 | 296.227 | 356.468 | 218.059 | 110.726 | -1228.486 | -889.534 | 58.081 | |||||||
| 900 | 326.352 | 393.097 | 235.480 | 141.855 | -1211.263 | -848.169 | 49.226 | |||||||
| 1000 | 356.477 | 429.041 | 253.044 | 175.997 | -1191.183 | -808.875 | 42.251 | |||||||
| PREVIOUS: June 1962 | CURRENT: December 1971 | |||||||||||||
| Phosphoric Acid (H3PO4) | H3O4P1(l) | |||||||||||||
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