Arsenic Trichloride (ideal gas) AsCl3 (g) As1Cl3(g) Pankratz 1984 (B674) [Formation: As[a ,1/4As4(g)] + 1.5Cl2(g) = AsCl3(g)] T(K) Cp (J/mol*K) S (J/mol*K) -[G-H(Tr)]/T (J/mol*K) H-H(Tr) (kJ/mol*K) delta-f H (kJ/mol*K) delta-f G (kJ/mol*K) log Kf 298.15 75.396 326.896 326.896 0.000 -261.500 -248.601 43.554 300 75.479 327.356 326.896 0.138 -261.500 -248.521 43.271 400 78.534 349.531 329.887 7.858 -261.504 -244.195 31.888 500 80.082 367.230 335.632 15.799 -261.479 -239.852 25.057 600 81.002 381.916 342.155 23.857 -261.500 -235.526 20.504 700 81.546 394.468 348.774 31.987 -261.559 -231.212 17.253 800 81.923 405.388 355.192 40.158 -261.676 -226.882 14.814 876 82.115 412.831 359.874 46.392 -261.801 -223.572 13.331 876 82.115 412.831 359.874 46.392 -296.566 -223.572 13.331 900 82.174 415.053 361.318 48.363 -296.432 -221.576 12.860 1000 82.341 423.714 367.121 56.593 -295.872 -213.284 11.141