Tantalum Chloride (TaCl5) Cl5Ta1(cr,l) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 100 200 298.15 147.904 221.752 221.752 0. -858.975 -746.448 130.775 300 147.904 222.667 221.755 0.274 -858.905 -745.750 129.847 400 147.904 265.216 227.556 15.064 -855.349 -708.578 92.531 489.700 147.904 295.142 237.288 28.331 CRYSTAL <--> LIQUID 489.700 217.482 366.911 237.288 63.477 TRANSITION 500 216.564 371.429 240.005 65.712 -816.238 -673.014 70.309 600 206.397 410.042 265.250 86.875 -806.816 -645.274 56.176 700 194.430 440.983 288.223 106.932 -798.643 -619.014 46.191 800 180.611 466.064 308.940 125.700 -791.858 -593.834 38.773