| Boron Oxide (B2O3) | B2O3(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. | 16.617 | INFINITE | -10.060 | -1247.966 | -1247.966 | INFINITE | |||||||
| 100 | 25.786 | 32.674 | 122.342 | -8.967 | -1251.278 | -1228.488 | 641.696 | |||||||
| 200 | 45.915 | 56.849 | 83.667 | -5.363 | -1252.707 | -1205.064 | 314.730 | |||||||
| 298.15 | 62.802 | 78.443 | 78.443 | 0. | -1253.359 | -1181.521 | 206.998 | |||||||
| 300 | 63.095 | 78.832 | 78.444 | 0.116 | -1253.366 | -1181.075 | 205.644 | |||||||
| 400 | 77.404 | 98.998 | 81.097 | 7.160 | -1253.504 | -1156.945 | 151.082 | |||||||
| 500 | 89.203 | 117.606 | 86.563 | 15.522 | -1253.193 | -1132.832 | 118.346 | |||||||
| 600 | 132.842 | 138.348 | 93.368 | 26.988 | -1250.428 | -1108.930 | 96.541 | |||||||
| 700 | 129.788 | 158.562 | 101.280 | 40.097 | -1246.511 | -1085.668 | 81.014 | |||||||
| 723.000 | 129.704 | 162.757 | 103.170 | 43.081 | CRYSTAL <--> LIQUID | |||||||||
| 800 | 129.704 | 175.883 | 109.547 | 53.069 | 1243.111 1062.926 69.402 | |||||||||
| 900 | 129.704 | 191.160 | 117.783 | 66.039 | -1240.012 | -1040.592 | 60.394 | |||||||
| 1000 | 129.704 | 204.826 | 125.816 | 79.009 | -1237.159 | -1018.589 | 53.206 | |||||||
| 1100 | 129.704 | 217.188 | 133.570 | 91.980 | -1234.512 | -996.861 | 47.337 | |||||||
| 1200 | 129.704 | 228.474 | 141.015 | 104.950 | -1232.043 | -975.367 | 42.457 | |||||||
| 1300 | 129.704 | 238.855 | 148.147 | 117.921 | -1229.730 | -954.072 | 38.335 | |||||||
| 1400 | 129.704 | 248.468 | 154.974 | 130.891 | -1227.560 | -932.950 | 34.809 | |||||||
| 1500 | 129.704 | 257.416 | 161.509 | 143.861 | -1225.520 | -911.979 | 31.758 | |||||||
| 1600 | 129.704 | 265.787 | 167.767 | 156.832 | -1223.603 | -891.139 | 29.093 | |||||||
| 1700 | 129.704 | 273.650 | 173.767 | 169.802 | -1221.802 | -870.416 | 26.745 | |||||||
| 1800 | 129.704 | 281.064 | 179.524 | 182.773 | -1220.115 | -849.796 | 24.660 | |||||||
| 1900 | 129.704 | 288.077 | 185.054 | 195.743 | -1218.537 | -829.266 | 22.798 | |||||||
| 2000 | 129.704 | 294.730 | 190.373 | 208.713 | -1217.065 | -808.817 | 21.124 | |||||||
| 2100 | 129.704 | 301.058 | 195.494 | 221.684 | -1215.698 | -788.438 | 19.611 | |||||||
| 2200 | 129.704 | 307.092 | 200.431 | 234.654 | -1214.434 | -768.122 | 18.238 | |||||||
| 2300 | 129.704 | 312.857 | 205.195 | 247.625 | -1213.271 | -747.862 | 16.984 | |||||||
| 2400 | 129.704 | 318.378 | 209.796 | 260.595 | -1312.727 | -725.513 | 15.790 | |||||||
| 2500 | 129.704 | 323.672 | 214.246 | 273.565 | -1311.919 | -701.062 | 14.648 | |||||||
| 2600 | 129.704 | 328.759 | 218.553 | 286.536 | -1311.143 | -676.643 | 13.594 | |||||||
| 2700 | 129.704 | 333.654 | 222.726 | 299.506 | -1310.398 | -652.253 | 12.619 | |||||||
| 2800 | 129.704 | 338.371 | 226.773 | 312.477 | -1309.685 | -627.890 | 11.713 | |||||||
| 2900 | 129.704 | 342.923 | 230.700 | 325.447 | -1309.001 | -603.554 | 10.871 | |||||||
| 3000 | 129.704 | 347.320 | 234.514 | 338.417 | -1308.346 | -579.238 | 10.085 | |||||||
| PREVIOUS: December 1964 | CURRENT: June 1971 | |||||||||||||
| Boron Oxide (B2O3) | B2O3(l) | |||||||||||||
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