Iron, Ion (Fe+) Fe1+(g)
 
Enthalpy Reference Temperature = Tr = 298.15 K Standard State Pressure = p° = 0.1 MPa
  J·K-1 mol-1 kJ·mol-1  
T/K Cp° S° -[G°-H°(Tr)]/T H-H°(Tr) fH° fG° log Kf
0 0. 0. INFINITE -6.936 1172.517    
100 21.618 155.635 204.058 -4.842      
200 24.813 171.652 184.215 -2.512      
250 25.689 177.294 182.284 -1.248      
 
298.15 26.068 181.857 181.857 0. 1181.144 1128.814 -197.764
 
300 26.075 182.018 181.857 0.048 1181.184 1128.489 -196.487
350 26.163 186.047 182.175 1.355 1182.244 1119.622 -167.094
400 26.112 189.538 182.882 2.662 1183.249 1110.607 -145.030
450 26.018 192.608 183.796 3.966 1184.194 1101.470 -127.855
500 25.931 195.345 184.816 5.264 1185.076 1092.230 -114.104
 
600 25.830 200.062 186.976 7.851 1186.656 1073.508 -93.457
700 25.802 204.041 189.137 10.433 1187.990 1054.541 -78.691
800 25.786 207.485 191.220 13.012 1189.034 1035.402 -67.605
900 25.744 210.521 193.199 15.589 1189.661 1016.155 -58.976
1000 25.661 213.229 195.069 18.160 1189.562 996.872 -52.071
 
1100 25.539 215.669 196.833 20.720 1188.559 977.666 -46.425
1200 25.390 217.885 198.497 23.266 1188.094 958.495 -41.722
1300 25.225 219.911 200.067 25.797 1189.260 939.314 -37.742
1400 25.054 221.774 201.552 28.311 1190.325 920.047 -34.327
1500 24.885 223.497 202.958 30.808 1191.290 900.707 -31.365
 
1600 24.726 225.098 204.293 33.289 1192.155 881.306 -28.772
1700 24.579 226.592 205.561 35.754 1191.970 861.872 -26.482
1800 24.447 227.993 206.769 38.205 1192.303 842.445 -24.447
1900 24.330 229.312 207.921 40.644 1178.443 823.703 -22.645
2000 24.229 230.557 209.022 43.071 1178.347 805.035 -21.025
 
2100 24.144 231.737 210.076 45.490 1178.242 786.372 -19.560
2200 24.074 232.859 211.086 47.901 1178.129 767.714 -18.228
2300 24.018 233.928 212.056 50.305 1178.009 749.062 -17.012
2400 23.975 234.949 212.989 52.705 1177.885 730.415 -15.897
2500 23.945 235.927 213.887 55.101 1177.757 711.773 -14.872
 
2600 23.927 236.866 214.753 57.494 1177.627 693.136 -13.925
2700 23.920 237.769 215.588 59.886 1177.495 674.504 -13.049
2800 23.925 238.639 216.396 62.278 1177.363 655.877 -12.236
2900 23.940 239.478 217.178 64.672 1177.233 637.255 -11.478
3000 23.966 240.290 217.935 67.067 1177.104 618.637 -10.771
 
3100 24.002 241.077 218.669 69.465 1176.979 600.024 -10.110
3200 24.049 241.840 219.381 71.868 828.558 588.838 -9.612
3300 24.104 242.580 220.073 74.275 830.342 581.319 -9.202
3400 24.170 243.301 220.745 76.689 832.100 573.747 -8.815
3500 24.245 244.003 221.400 79.110 833.831 566.123 -8.449
 
3600 24.329 244.687 222.037 81.538 835.536 558.450 -8.103
3700 24.423 245.355 222.658 83.976 837.216 550.730 -7.775
3800 24.525 246.007 223.264 86.423 838.869 542.965 -7.464
3900 24.636 246.646 223.856 88.881 840.497 535.156 -7.168
4000 24.756 247.271 224.433 91.351 842.099 527.307 -6.886
 
4100 24.883 247.884 224.998 93.833 843.675 519.417 -6.617
4200 25.018 248.485 225.550 96.328 845.224 511.490 -6.361
4300 25.161 249.075 226.090 98.836 846.747 503.526 -6.117
4400 25.310 249.656 226.619 101.360 848.243 495.526 -5.883
4500 25.467 250.226 227.137 103.899 849.712 487.493 -5.659
 
4600 25.629 250.788 227.646 106.453 851.154 479.428 -5.444
4700 25.797 251.341 228.144 109.025 852.567 471.332 -5.238
4800 25.970 251.885 228.633 111.613 853.951 463.206 -5.041
4900 26.149 252.423 229.113 114.219 855.306 455.051 -4.851
5000 26.331 252.953 229.584 116.843 856.631 446.869 -4.668
 
5100 26.518 253.476 230.048 119.485 857.925 438.661 -4.493
5200 26.708 253.993 230.503 122.147 859.187 430.428 -4.324
5300 26.901 254.503 230.951 124.827 860.415 422.171 -4.161
5400 27.096 255.008 231.392 127.527 861.609 413.891 -4.004
5500 27.293 255.507 231.826 130.246 862.767 405.589 -3.852
 
5600 27.493 256.001 232.253 132.985 863.887 397.266 -3.706
5700 27.693 256.489 232.674 135.745 864.967 388.924 -3.564
5800 27.894 256.972 233.089 138.524 866.006 380.564 -3.427
5900 28.095 257.451 233.498 141.324 867.000 372.185 -3.295
6000 28.297 257.925 233.901 144.143 867.947 363.791 -3.167
 
PREVIOUS: March 1978 (1 atm) CURRENT: June 1984 (1 bar)
 
Iron, Ion (Fe+) Fe1+(g)

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