Gold (ideal monatomic gas) Au(g) Au1(g) Pankratz 1982 (B672) [Formation: Au(c,l) = Au(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 20.786 180.397 180.397 0.000 366.100 326.448 -57.192 300 20.786 180.527 180.402 0.038 366.092 326.201 -56.796 400 20.786 186.506 181.213 2.117 365.602 312.980 -40.870 500 20.786 191.142 182.749 4.197 365.075 299.888 -31.329 600 20.786 194.933 184.473 6.276 364.502 286.901 -24.977 700 20.786 198.138 186.209 8.351 363.874 274.014 -20.447 800 20.786 200.911 187.874 10.431 363.213 261.224 -17.056 900 20.790 203.363 189.464 12.510 362.518 248.513 -14.423 1000 20.794 205.552 190.962 14.590 361.795 235.890 -12.321 1100 20.807 207.535 192.380 16.669 361.025 223.334 -10.605 1200 20.836 209.346 193.719 18.753 360.155 210.857 -9.178 1300 20.887 211.016 194.987 20.836 359.075 198.451 -7.974 1337.58 20.916 211.610 195.447 21.623 358.586 193.815 -7.569 1337.58 20.916 211.610 195.447 21.623 346.213 193.815 -7.569 1400 20.966 212.568 196.192 22.928 345.435 186.719 -6.966 1500 21.079 214.016 197.326 25.033 344.205 175.431 -6.109 1600 21.234 215.380 198.414 27.146 342.983 164.218 -5.361 1700 21.426 216.673 199.451 29.280 341.783 153.088 -4.704 1800 21.665 217.907 200.443 31.434 340.603 142.013 -4.121 1900 21.945 219.083 201.393 33.614 339.444 131.014 -3.602 2000 22.263 220.216 202.305 35.823 338.318 120.072 -3.136