Potassium Sulfate (K2SO4) K2O4S1(cr,l) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 0. 0. INFINITE -25.436 -1427.199 -1427.199 INFINITE 100 79.195 61.609 277.387 -21.578 -1433.305 -1396.431 729.421 200 110.667 127.344 186.920 -11.915 -1436.295 -1358.245 354.737 298.15 131.319 175.544 175.544 0. -1437.706 -1319.595 231.188 300 131.666 176.357 175.546 0.243 -1437.723 -1318.862 229.634 400 147.649 216.494 180.911 14.233 -1445.229 -1278.152 166.909 500 160.733 250.870 191.544 29.663 -1446.060 -1236.272 129.153 600 172.527 281.186 204.005 46.309 -1445.397 -1194.353 103.978 700 186.368 308.829 217.031 64.259 -1443.295 -1152.659 86.012 800 199.619 334.580 230.132 83.558 -1439.835 -1111.361 72.564 857.000 207.169 348.575 237.547 95.151 ALPHA <--> BETA 857.000 184.000 358.437 237.547 103.603 TRANSITION 900 187.485 367.530 243.541 111.590 -1480.836 -1069.890 62.095 1000 195.602 387.703 256.959 130.744 -1476.487 -1024.456 53.512 1100 203.761 406.729 269.718 150.713 -1629.446 -970.268 46.074 1200 211.878 424.807 281.895 171.494 -1621.806 -910.674 39.641 1300 219.995 442.087 293.557 193.089 -1613.438 -851.747 34.224 1342.000 223.384 449.136 298.316 202.400 BETA <--> LIQUID 1342.000 201.460 474.763 298.316 236.792 TRANSITION 1400 201.460 483.287 305.804 248.477 -1571.353 -794.950 29.660 1500 201.460 497.187 318.105 268.623 -1564.582 -739.730 25.760 1600 201.460 510.189 329.708 288.769 -1557.880 -684.958 22.362 1700 201.460 522.402 340.688 308.915 -1551.245 -630.604 19.376 1800 201.460 533.917 351.106 329.061 -1544.678 -576.639 16.734 1900 201.460 544.809 361.017 349.207 -1538.178 -523.037 14.379 2000 201.460 555.143 370.467 369.353 -1531.747 -469.774 12.269 2100 201.460 564.972 379.497 389.499 -1525.387 -416.833 10.368 2200 201.460 574.344 388.142 409.644 -1519.101 -364.191 8.647 2300 201.460 583.299 396.434 429.790 -1512.892 -311.835 7.082 2400 201.460 591.873 404.400 449.936 -1506.763 -259.747 5.653 2500 201.460 600.097 412.064 470.082 -1500.719 -207.913 4.344 2600 201.460 607.999 419.449 490.228 -1494.762 -156.318 3.140 2700 201.460 615.602 426.574 510.374 -1488.898 -104.951 2.030 2800 201.460 622.929 433.457 530.520 -1483.129 -53.799 1.004 2900 201.460 629.998 440.113 550.666 -1477.463 -2.853 0.051 3000 201.460 636.828 446.557 570.812 -1471.903 47.901 -0.834