Copper Cyanide (CuCN) C1Cu1N1(cr) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 0. 0. INFINITE -12.052 93.317 93.317 INFINITE 100 35.238 36.869 137.842 -10.097 93.093 98.495 -51.449 200 52.484 67.308 95.337 -5.606 93.790 103.689 -27.081 298.15 61.024 90.002 90.002 0. 94.977 108.306 -18.975 300 62.195 90.383 90.003 0.114 95.003 108.389 -18.872 400 66.735 108.930 92.500 6.572 96.486 112.628 -14.708 500 70.249 124.212 97.358 13.427 97.978 116.491 -12.170 600 73.136 137.282 102.949 20.600 99.462 120.054 -10.452 700 75.689 148.753 108.689 28.045 100.938 123.370 -9.206 800 78.032 159.016 114.350 35.733 102.427 126.473 -8.258 900 80.249 168.337 119.838 43.649 103.943 129.388 -7.509 1000 82.341 176.900 125.122 51.778 105.495 132.132 -6.902