Formaldehyde (H2CO) C1H2O1(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 -10.021 -112.057 -112.057 INFINITE
100 33.258 182.208 249.156 -6.695 -113.243 -112.630 58.832
200 33.502 205.292 222.109 -3.363 -114.387 -111.598 29.146
250 34.194 212.831 219.525 -1.673 -115.118 -110.819 23.154
 
298.15 35.402 218.950 218.950 0. -115.897 -109.921 19.258
 
300 35.458 219.169 218.951 0.066 -115.928 -109.884 19.132
350 37.203 224.761 219.388 1.880 -116.771 -108.810 16.239
400 39.264 229.861 220.383 3.791 -117.616 -107.615 14.053
450 41.489 234.613 221.703 5.810 -118.445 -106.314 12.341
500 43.766 239.102 223.220 7.941 -119.245 -104.923 10.961
 
600 48.216 247.478 226.575 12.542 -120.731 -101.917 8.873
700 52.319 255.224 230.121 17.572 -122.039 -98.675 7.363
800 55.983 262.455 233.716 22.991 -123.162 -95.259 6.220
900 59.199 269.239 237.290 28.754 -124.111 -91.712 5.323
1000 61.995 275.624 240.807 34.817 -124.906 -88.068 4.600
 
1100 64.411 281.649 244.249 41.140 -125.570 -84.351 4.005
1200 66.494 287.345 247.605 47.688 -126.127 -80.578 3.507
1300 68.290 292.740 250.871 54.429 -126.596 -76.763 3.084
1400 69.840 297.859 254.046 61.338 -126.998 -72.914 2.720
1500 71.182 302.724 257.131 68.390 -127.349 -69.039 2.404
 
1600 72.346 307.356 260.126 75.568 -127.661 -65.141 2.127
1700 73.360 311.773 263.035 82.855 -127.946 -61.225 1.881
1800 74.246 315.992 265.861 90.236 -128.213 -57.292 1.663
1900 75.023 320.028 268.606 97.700 -128.470 -53.345 1.467
2000 75.709 323.894 271.275 105.237 -128.724 -49.385 1.290
 
2100 76.314 327.602 273.869 112.839 -128.979 -45.411 1.130
2200 76.852 331.165 276.393 120.498 -129.240 -41.426 0.984
2300 77.331 334.592 278.850 128.208 -129.510 -37.428 0.850
2400 77.759 337.893 281.241 135.963 -129.792 -33.419 0.727
2500 78.143 341.075 283.572 143.758 -130.090 -29.397 0.614
 
2600 78.489 344.146 285.843 151.590 -130.404 -25.363 0.510
2700 78.801 347.115 288.057 159.455 -130.736 -21.317 0.412
2800 79.083 349.986 290.218 167.349 -131.088 -17.258 0.322
2900 79.339 352.765 292.327 175.270 -131.461 -13.186 0.238
3000 79.573 355.459 294.387 183.216 -131.855 -9.101 0.158
 
3100 79.786 358.072 296.399 191.184 -132.272 -5.002 0.084
3200 79.981 360.608 298.366 199.173 -132.713 -0.890 0.015
3300 80.159 363.072 300.290 207.180 -133.177 3.236 -0.051
3400 80.323 365.467 302.172 215.204 -133.666 7.377 -0.113
3500 80.475 367.798 304.014 223.244 -134.179 11.533 -0.172
 
3600 80.614 370.067 305.817 231.299 -134.717 15.704 -0.228
3700 80.743 372.277 307.584 239.367 -135.281 19.890 -0.281
3800 80.863 374.432 309.315 247.447 -135.871 24.092 -0.331
3900 80.974 376.534 311.011 255.539 -136.486 28.310 -0.379
4000 81.077 378.586 312.675 263.641 -137.128 32.543 -0.425
 
4100 81.173 380.589 314.307 271.754 -137.796 36.793 -0.469
4200 81.263 382.546 315.909 279.876 -138.491 41.060 -0.511
4300 81.346 384.459 317.481 288.006 -139.213 45.343 -0.551
4400 81.425 386.330 319.024 296.145 -139.962 49.643 -0.589
4500 81.498 388.161 320.541 304.291 -140.738 53.961 -0.626
 
4600 81.567 389.953 322.030 312.444 -141.540 58.296 -0.662
4700 81.631 391.708 323.494 320.604 -142.371 62.650 -0.696
4800 81.692 393.427 324.933 328.771 -143.228 67.021 -0.729
4900 81.749 395.112 326.348 336.943 -144.113 71.410 -0.761
5000 81.803 396.764 327.740 345.120 -145.025 75.818 -0.792
 
5100 81.854 398.384 329.109 353.303 -145.964 80.244 -0.822
5200 81.902 399.974 330.457 361.491 -146.930 84.689 -0.851
5300 81.948 401.535 331.783 369.683 -147.924 89.153 -0.879
5400 81.991 403.067 333.089 377.880 -148.944 93.636 -0.906
5500 82.031 404.572 334.375 386.082 -149.991 98.137 -0.932
 
5600 82.070 406.050 335.642 394.287 -151.064 102.659 -0.958
5700 82.107 407.503 336.890 402.495 -152.164 107.199 -0.982
5800 82.141 408.932 338.120 410.708 -153.290 111.759 -1.007
5900 82.175 410.336 339.332 418.924 -154.442 116.338 -1.030
6000 82.206 411.717 340.527 427.143 -155.619 120.938 -1.053
 
PREVIOUS: March 1961 (1 atm) CURRENT: March 1961 (1 bar)
 
Formaldehyde (H2CO) C1H2O1(g)

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