Tungsten Bromide (WBr6) Br6W1(cr) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 298.15 181.385 313.800 313.800 0. -343.088 -290.769 50.942 300 181.586 314.923 313.803 0.336 -343.217 -290.444 50.571 400 192.464 368.651 321.056 19.038 -430.418 -254.610 33.249 500 203.342 412.767 335.110 38.829 -424.217 -211.356 22.080 600 214.221 450.802 351.291 59.707 -417.055 -169.440 14.751 700 225.099 484.642 367.966 81.673 -408.905 -128.801 9.611 800 235.978 515.410 384.501 104.727 -399.754 -89.399 5.837 900 246.856 543.832 400.645 128.868 -389.593 -51.204 2.972 1000 257.734 570.404 416.306 154.098 -378.419 -14.195 0.741