Phosphorus Sulfide (P4S3) P4S3(cr,l) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 100 200 250 298.15 146.440 200.832 200.832 0. -224.647 -206.864 36.242 300 146.440 201.738 200.835 0.271 -224.679 -206.754 35.999 400 146.440 243.866 206.579 14.915 -236.834 -199.434 26.043 440.000 146.440 257.823 210.613 20.773 CRYSTAL <--> LIQUID 440.000 184.096 278.743 210.613 29.977 TRANSITION 500 184.096 302.277 220.231 41.023 -233.041 -190.638 19.916 600 184.096 335.842 236.787 59.433 -235.916 -181.869 15.833 700 184.096 364.220 253.017 77.842 -238.077 -172.684 12.886 800 184.096 388.803 268.488 96.252 -239.831 -163.219 10.657 900 184.096 410.486 283.084 114.661 -400.722 -150.307 8.724 1000 184.096 429.882 296.811 133.071 -398.411 -122.607 6.404 1100 184.096 447.429 309.719 151.481 -396.146 -95.137 4.518 1200 184.096 463.447 321.872 169.890 -648.216 -63.557 2.767 1300 184.096 478.183 333.337 188.300 -642.946 -15.050 0.605 1400 184.096 491.826 344.176 206.709 -637.741 33.054 -1.233 1500 184.096 504.527 354.448 225.119 -632.598 80.788 -2.813 1600 184.096 516.408 364.203 243.529 -627.515 128.181 -4.185 1700 184.096 527.569 373.488 261.938 -622.487 175.258 -5.385 1800 184.096 538.092 382.343 280.348 -617.512 222.040 -6.443 1900 184.096 548.045 390.804 298.757 -612.586 268.548 -7.383 2000 184.096 557.488 398.905 317.167 -607.706 314.797 -8.222 2100 184.096 566.470 406.672 335.577 -602.867 360.803 -8.974 2200 184.096 575.034 414.131 353.986 -598.067 406.579 -9.653 2300 184.096 583.218 421.306 372.396 -593.303 452.138 -10.268 2400 184.096 591.053 428.217 390.805 -588.572 497.491 -10.828 2500 184.096 598.568 434.882 409.215 -583.872 542.647 -11.338 2600 184.096 605.788 441.317 427.625 -579.201 587.615 -11.805 2700 184.096 612.736 447.538 446.034 -574.554 632.404 -12.235 2800 184.096 619.431 453.558 464.444 -569.931 677.022 -12.630 2900 184.096 625.891 459.390 482.853 -565.330 721.474 -12.995 3000 184.096 632.133 465.045 501.263 -560.752 765.769 -13.333