fH°fG°| Phosphoric Acid (H3PO4) | H3O4P1(cr,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 | 0. | 0. | INFINITE | -16.980 | -1265.927 | -1265.927 | INFINITE | |||||||
| 100 | 42.844 | 34.528 | 183.578 | -14.905 | -1275.048 | -1226.961 | 640.899 | |||||||
| 200 | 75.856 | 74.598 | 119.270 | -8.935 | -1281.203 | -1176.480 | 307.265 | |||||||
| 298.15 | 106.064 | 110.544 | 110.544 | 0. | -1284.375 | -1124.314 | 196.975 | |||||||
| 300 | 106.608 | 111.202 | 110.546 | 0.197 | -1284.411 | -1123.321 | 195.588 | |||||||
| 315.500 | 111.303 | 116.688 | 110.713 | 1.885 | CRYSTAL <--> LIQUID | |||||||||
| 315.500 | 150.273 | 159.125 | 110.713 | 15.274 | TRANSITION | |||||||||
| 400 | 175.728 | 197.687 | 125.068 | 29.048 | -1269.114 | -1073.263 | 140.154 | |||||||
| 500 | 205.853 | 240.135 | 143.882 | 48.127 | -1263.169 | -1024.930 | 107.074 | |||||||
| 600 | 235.978 | 280.330 | 163.299 | 70.218 | -1254.423 | -978.057 | 85.147 | |||||||
| 700 | 266.102 | 318.968 | 182.794 | 95.322 | -1242.867 | -932.871 | 69.612 | |||||||
| 800 | 296.227 | 356.468 | 202.169 | 123.439 | -1228.486 | -889.534 | 58.081 | |||||||
| 900 | 326.352 | 393.097 | 221.356 | 154.568 | -1211.263 | -848.169 | 49.226 | |||||||
| 1000 | 356.477 | 429.041 | 240.332 | 188.709 | -1191.183 | -808.875 | 42.251 | |||||||
| PREVIOUS: | CURRENT: December 1971 | |||||||||||||
| Phosphoric Acid (H3PO4) | H3O4P1(cr,l) | |||||||||||||
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