Boron Oxide (B2O3) | B2O3(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) | ![]() |
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log Kf | |||||||
0 | 0. | 0. | INFINITE | -9.293 | -1265.776 | -1265.776 | INFINITE | |||||||
100 | 20.740 | 10.983 | 96.353 | -8.537 | -1269.425 | -1244.466 | 650.042 | |||||||
200 | 43.844 | 32.869 | 59.093 | -5.245 | -1271.165 | -1218.726 | 318.299 | |||||||
298.15 | 62.588 | 53.953 | 53.953 | 0. | -1271.936 | -1192.796 | 208.973 | |||||||
300 | 62.927 | 54.341 | 53.954 | 0.116 | -1271.944 | -1192.305 | 207.599 | |||||||
400 | 77.948 | 74.600 | 56.614 | 7.194 | -1272.047 | -1165.729 | 152.229 | |||||||
500 | 89.287 | 93.269 | 62.105 | 15.582 | -1271.710 | -1139.180 | 119.009 | |||||||
600 | 98.115 | 110.360 | 68.744 | 24.969 | -1271.024 | -1112.733 | 96.872 | |||||||
700 | 105.228 | 126.039 | 75.825 | 35.149 | -1270.036 | -1086.426 | 81.070 | |||||||
723.000 | 106.692 | 129.464 | 77.477 | 37.587 | CRYSTAL <--> LIQUID | |||||||||
723.000 | 129.704 | 162.757 | 77.477 | 61.657 | TRANSITION | |||||||||
800 | 129.704 | 175.883 | 86.328 | 71.644 | -1243.112 | -1062.927 | 69.402 | |||||||
900 | 129.704 | 191.160 | 97.144 | 84.615 | -1240.014 | -1040.593 | 60.394 | |||||||
1000 | 129.704 | 204.826 | 107.241 | 97.585 | -1237.160 | -1018.590 | 53.206 | |||||||
1100 | 129.704 | 217.188 | 116.683 | 110.556 | -1234.514 | -996.863 | 47.337 | |||||||
1200 | 129.704 | 228.474 | 125.535 | 123.526 | -1232.044 | -975.368 | 42.457 | |||||||
1300 | 129.704 | 238.855 | 133.858 | 136.496 | -1229.732 | -954.074 | 38.335 | |||||||
1400 | 129.704 | 248.468 | 141.706 | 149.467 | -1227.561 | -932.951 | 34.809 | |||||||
1500 | 129.704 | 257.416 | 149.125 | 162.437 | -1225.521 | -911.980 | 31.758 | |||||||
1600 | 129.704 | 265.787 | 156.157 | 175.408 | -1223.604 | -891.141 | 29.093 | |||||||
1700 | 129.704 | 273.650 | 162.840 | 188.378 | -1221.804 | -870.417 | 26.745 | |||||||
1800 | 129.704 | 281.064 | 169.204 | 201.348 | -1220.116 | -849.797 | 24.660 | |||||||
1900 | 129.704 | 288.077 | 175.277 | 214.319 | -1218.538 | -829.267 | 22.798 | |||||||
2000 | 129.704 | 294.730 | 181.085 | 227.289 | -1217.066 | -808.818 | 21.124 | |||||||
2100 | 129.704 | 301.058 | 186.649 | 240.260 | -1215.699 | -788.439 | 19.611 | |||||||
2200 | 129.704 | 307.092 | 191.987 | 253.230 | -1214.435 | -768.123 | 18.238 | |||||||
2300 | 129.704 | 312.857 | 197.118 | 266.200 | -1213.272 | -747.863 | 16.985 | |||||||
2400 | 129.704 | 318.378 | 202.056 | 279.171 | -1312.728 | -725.514 | 15.790 | |||||||
2500 | 129.704 | 323.672 | 206.816 | 292.141 | -1311.920 | -701.063 | 14.648 | |||||||
2600 | 129.704 | 328.759 | 211.409 | 305.112 | -1311.144 | -676.644 | 13.594 | |||||||
2700 | 129.704 | 333.654 | 215.846 | 318.082 | -1310.400 | -652.254 | 12.619 | |||||||
2800 | 129.704 | 338.372 | 220.139 | 331.052 | -1309.686 | -627.891 | 11.713 | |||||||
2900 | 129.704 | 342.923 | 224.294 | 344.023 | -1309.002 | -603.555 | 10.871 | |||||||
3000 | 129.704 | 347.320 | 228.322 | 356.993 | -1308.347 | -579.240 | 10.085 | |||||||
PREVIOUS: | CURRENT: June 1971 | |||||||||||||
Boron Oxide (B2O3) | B2O3(cr,l) |
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