Sodium Fluoride ((NaF)2) F2Na2(g) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 0. 0. INFINITE -15.250 -839.955 -839.955 INFINITE 100 41.612 225.792 342.904 -11.711 -842.002 -842.782 440.224 200 60.880 260.954 293.579 -6.525 -844.657 -842.438 220.022 250 66.886 275.228 288.512 -3.321 -845.604 -841.771 175.878 298.15 70.821 287.366 287.366 0. -846.423 -840.957 147.332 300 70.945 287.805 287.368 0.131 -846.454 -840.923 146.418 350 73.732 298.963 288.243 3.752 -847.327 -839.934 125.353 400 75.698 308.945 290.218 7.491 -853.557 -838.401 109.484 450 77.125 317.947 292.807 11.313 -854.527 -836.448 97.092 500 78.187 326.131 295.736 15.197 -855.419 -834.391 87.168 600 79.625 340.524 302.034 23.094 -857.028 -830.030 72.261 700 80.524 352.871 308.436 31.105 -858.473 -825.415 61.593 800 81.120 363.665 314.679 39.189 -859.817 -820.599 53.580 900 81.536 373.245 320.664 47.323 -861.111 -815.619 47.337 1000 81.835 381.852 326.360 55.492 -862.407 -810.495 42.336 1100 82.059 389.662 331.765 63.687 -863.748 -805.240 38.238 1200 82.230 396.810 336.892 71.902 -1058.700 -794.979 34.605 1300 82.364 403.398 341.758 80.132 -1058.397 -773.014 31.060 1400 82.470 409.505 346.381 88.374 -1058.103 -751.073 28.023 1500 82.556 415.198 350.781 96.625 -1057.819 -729.152 25.391 1600 82.627 420.529 354.976 104.885 -1057.546 -707.250 23.089 1700 82.686 425.540 358.981 113.150 -1057.283 -685.365 21.059 1800 82.735 430.267 362.811 121.422 -1057.030 -663.494 19.254 1900 82.777 434.742 366.480 129.697 -1056.785 -641.638 17.640 2000 82.812 438.989 370.000 137.977 -1056.547 -619.794 16.187 2100 82.843 443.030 373.382 146.260 -1056.313 -597.963 14.874 2200 82.870 446.884 376.637 154.545 -1056.081 -576.142 13.679 2300 82.893 450.569 379.771 162.833 -1055.850 -554.331 12.589 2400 82.913 454.097 382.795 171.124 -1055.617 -532.531 11.590 2500 82.931 457.482 385.716 179.416 -1055.380 -510.741 10.671 2600 82.947 460.735 388.539 187.710 -1055.138 -488.960 9.823 2700 82.962 463.866 391.271 196.005 -1054.890 -467.189 9.038 2800 82.974 466.883 393.918 204.302 -1054.634 -445.427 8.310 2900 82.986 469.795 396.484 212.600 -1054.370 -423.674 7.631 3000 82.996 472.608 398.975 220.899 -1054.100 -401.930 6.998 3100 83.006 475.330 401.395 229.199 -1053.823 -380.196 6.406 3200 83.014 477.965 403.747 237.500 -1053.542 -358.471 5.851 3300 83.022 480.520 406.035 245.802 -1053.256 -336.754 5.330 3400 83.029 482.999 408.262 254.105 -1052.970 -315.046 4.840 3500 83.035 485.406 410.432 262.408 -1052.686 -293.347 4.378 3600 83.041 487.745 412.547 270.712 -1052.406 -271.655 3.942 3700 83.047 490.020 414.610 279.016 -1052.136 -249.971 3.529 3800 83.052 492.235 416.624 287.321 -1051.878 -228.295 3.138 3900 83.057 494.392 418.591 295.627 -1051.637 -206.625 2.767 4000 83.061 496.495 420.512 303.932 -1051.419 -184.961 2.415 4100 83.065 498.546 422.390 312.239 -1051.229 -163.302 2.080 4200 83.069 500.548 424.228 320.545 -1051.067 -141.647 1.762 4300 83.072 502.503 426.025 328.852 -1050.948 -119.996 1.458 4400 83.075 504.412 427.785 337.160 -1050.788 -98.354 1.168 4500 83.078 506.279 429.509 345.468 -1050.719 -76.710 0.890 4600 83.081 508.105 431.198 353.776 -1050.717 -55.065 0.625 4700 83.084 509.892 432.853 362.084 -1050.772 -33.420 0.371 4800 83.086 511.641 434.476 370.392 -1050.891 -11.773 0.128 4900 83.089 513.355 436.069 378.701 -1051.079 9.877 -0.105 5000 83.091 515.033 437.631 387.010 -1051.328 31.530 -0.329 5100 83.093 516.679 439.165 395.319 -1051.670 53.191 -0.545 5200 83.095 518.292 440.671 403.629 -1052.100 74.859 -0.752 5300 83.097 519.875 442.151 411.938 -1052.623 96.536 -0.951 5400 83.098 521.428 443.605 420.248 -1053.246 118.224 -1.144 5500 83.100 522.953 445.033 428.558 -1053.975 139.924 -1.329 5600 83.102 524.450 446.438 436.868 -1054.814 161.639 -1.508 5700 83.103 525.921 447.820 445.178 -1055.770 183.369 -1.680 5800 83.104 527.367 449.179 453.489 -1056.847 205.118 -1.847 5900 83.106 528.787 450.516 461.799 -1058.051 226.886 -2.009 6000 83.107 530.184 451.832 470.110 -1059.069 248.639 -2.165