Ethyne (C2H2) C2H2(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 0.000 0.000 INFINITE -10.012 227.288 227.288 INFINITE
100 29.347 163.294 234.338 -7.104 227.078 221.011 -115.444
200 35.585 185.097 204.720 -3.925 226.911 215.006 -56.154
 
298.15 44.095 200.958 200.958 0.000 226.731 209.200 -36.651
 
300 44.229 201.231 200.959 .082 226.728 209.092 -36.406
400 50.480 214.856 202.774 4.833 226.527 203.242 -26.541
500 54.869 226.610 206.393 10.108 226.227 197.452 -20.628
 
600 58.287 236.924 210.640 15.771 225.804 191.735 -16.692
700 61.149 246.127 215.064 21.745 225.294 186.097 -13.887
800 63.760 254.466 219.476 27.992 224.747 180.534 -11.788
900 66.111 262.113 223.794 34.487 224.198 175.041 -10.159
1000 68.275 269.192 227.984 41.208 223.669 169.607 -8.859
 
1100 70.245 275.793 232.034 48.136 223.170 164.226 -7.798
1200 72.053 281.984 235.941 55.252 222.705 158.888 -6.916
1300 73.693 287.817 239.709 62.540 222.275 153.588 -6.171
1400 75.178 293.334 243.344 69.985 221.877 148.319 -5.534
1500 76.530 298.567 246.853 77.572 221.506 143.078 -4.982
 
1600 77.747 303.546 250.242 85.286 221.160 137.861 -4.501
1700 78.847 308.293 253.518 93.117 220.833 132.665 -4.076
1800 79.852 312.829 256.688 101.053 220.521 127.487 -3.700
1900 80.760 317.171 259.758 109.084 220.222 122.327 -3.363
2000 81.605 321.335 262.733 117.203 219.931 117.182 -3.060
 
2100 82.362 325.335 265.620 125.401 219.647 112.052 -2.787
2200 83.065 329.183 268.422 133.673 219.367 106.935 -2.539
2300 83.712 332.890 271.145 142.012 219.088 101.830 -2.313
2400 84.312 336.465 273.793 150.414 218.809 96.738 -2.105
2500 84.858 339.918 276.369 158.873 218.527 91.658 -1.915
 
2600 85.370 343.256 278.878 167.384 218.242 86.589 -1.740
2700 85.846 346.487 281.322 175.945 217.950 81.530 -1.577
2800 86.295 349.618 283.706 184.553 217.652 76.483 -1.427
2900 86.713 352.653 286.031 193.203 217.346 71.447 -1.287
3000 87.111 355.600 288.301 201.895 217.030 66.421 -1.157
 
3100 87.474 358.462 290.519 210.624 216.705 61.406 -1.035
3200 87.825 361.245 292.686 219.389 216.368 56.402 -.921
3300 88.164 363.952 294.804 228.189 216.019 51.409 -.814
3400 88.491 366.589 296.877 237.022 215.658 46.426 -.713
3500 88.805 369.159 298.906 245.886 215.285 41.454 -.619
 
3600 89.101 371.665 300.892 254.782 214.899 36.493 -.529
3700 89.388 374.110 302.838 263.706 214.499 31.542 -.445
3800 89.666 376.498 304.745 272.659 214.084 26.603 -.366
3900 89.935 378.830 306.615 281.639 213.655 21.675 -.290
4000 90.194 381.110 308.449 290.646 213.210 16.758 -.219
 
4100 90.439 383.341 310.248 299.678 212.750 11.852 -.151
4200 90.678 385.523 312.015 308.733 212.273 6.958 -.087
4300 90.910 387.659 313.749 317.813 211.779 2.076 -.025
4400 91.137 389.752 315.453 326.915 211.268 -2.795 .033
4500 91.358 391.802 317.127 336.040 210.740 -7.655 .089
 
4600 91.563 393.813 318.772 345.186 210.194 -12.502 .142
4700 91.768 395.784 320.390 354.353 209.630 -17.337 .193
4800 91.970 397.718 321.981 363.540 209.049 -22.160 .241
4900 92.171 399.617 323.546 372.747 208.450 -26.971 .288
5000 92.370 401.481 325.086 381.974 207.833 -31.769 .332
 
5100 92.571 403.312 326.602 391.221 207.201 -36.555 .374
5200 92.768 405.111 328.094 400.488 206.553 -41.328 .415
5300 92.963 406.880 329.564 409.775 205.889 -46.089 .454
5400 93.153 408.620 331.012 419.080 205.211 -50.836 .492
5500 93.341 410.331 332.439 428.405 204.517 -55.572 .528
 
5600 93.525 412.014 333.845 437.748 203.810 -60.294 .562
5700 93.706 413.671 335.231 447.110 203.090 -65.004 .596
5800 93.883 415.302 336.597 456.489 202.356 -69.701 .628
5900 94.057 416.909 337.945 465.886 201.610 -74.386 .659
6000 94.228 418.491 339.274 475.301 200.853 -79.057 .688
 
PREVIOUS: March 1961 (1 atm) CURRENT: March 1961 (1 bar
 
Ethyne (C2H2) C2H2(g)

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