Iron Bromide (FeBr2) Br2Fe1(cr) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 298.15 80.232 140.666 140.666 0. -248.948 -237.362 41.585 300 80.274 141.163 140.668 0.148 -248.986 -237.290 41.316 400 82.500 164.560 143.843 8.287 -277.955 -227.334 29.687 500 84.726 183.209 149.912 16.648 -276.138 -214.890 22.449 600 86.952 198.853 156.799 25.232 -274.360 -202.807 17.656 650.000 88.061 205.857 160.306 29.608 I <--> II 650.000 88.069 206.500 160.306 30.026 TRANSITION 700 89.178 213.067 163.843 34.457 -272.199 -191.053 14.257 800 91.404 225.121 170.763 43.486 -270.537 -179.575 11.725 900 93.630 236.015 177.417 52.738 -269.078 -168.295 9.768 964.000 95.054 242.495 181.525 58.776 II <--> LIQUID 1000 95.855 245.995 183.783 62.212 268.125 157.156 8.209 1100 98.081 255.236 189.864 71.909 -267.854 -146.056 6.936 1200 100.307 263.865 195.675 81.828 -266.817 -135.047 5.878 1300 102.533 271.982 201.235 91.970 -263.919 -124.183 4.990 1400 104.759 279.662 206.565 102.335 -260.891 -113.547 4.236 1500 106.985 286.965 211.684 112.922 -257.733 -103.132 3.591