Sulfur Trioxide (SO3) O3S1(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 -11.697 -390.025 -390.025 INFINITE
100 34.076 212.371 295.976 -8.361 -391.735 -385.724 201.481
200 42.336 238.259 261.145 -4.577 -393.960 -378.839 98.943
250 46.784 248.192 257.582 -2.348 -394.937 -374.943 78.340
 
298.15 50.661 256.769 256.769 0. -395.765 -371.016 65.000
 
300 50.802 257.083 256.770 0.094 -395.794 -370.862 64.573
350 54.423 265.191 257.402 2.726 -396.543 -366.646 54.719
400 57.672 272.674 258.849 5.530 -399.412 -362.242 47.304
450 60.559 279.637 260.777 8.487 -400.656 -357.529 41.501
500 63.100 286.152 262.992 11.580 -401.878 -352.668 36.843
 
600 67.255 298.041 267.862 18.107 -403.675 -342.647 29.830
700 70.390 308.655 272.945 24.997 -405.014 -332.365 24.801
800 72.761 318.217 278.017 32.160 -406.068 -321.912 21.019
900 74.570 326.896 282.973 39.531 -460.062 -310.258 18.007
1000 75.968 334.828 287.768 47.060 -459.581 -293.639 15.338
 
1100 77.065 342.122 292.382 54.714 -459.063 -277.069 13.157
1200 77.937 348.866 296.811 62.466 -458.521 -260.548 11.341
1300 78.639 355.133 301.060 70.296 -457.968 -244.073 9.807
1400 79.212 360.983 305.133 78.189 -457.413 -227.640 8.493
1500 79.685 366.465 309.041 86.135 -456.863 -211.247 7.356
 
1600 80.079 371.620 312.793 94.124 -456.323 -194.890 6.363
1700 80.410 376.485 316.398 102.149 -455.798 -178.567 5.487
1800 80.692 381.090 319.865 110.204 -455.293 -162.274 4.709
1900 80.932 385.459 323.203 118.286 -454.810 -146.009 4.014
2000 81.140 389.616 326.421 126.390 -454.351 -129.768 3.389
 
2100 81.319 393.579 329.525 134.513 -453.919 -113.549 2.824
2200 81.476 397.366 332.523 142.653 -453.514 -97.350 2.311
2300 81.614 400.990 335.422 150.807 -453.137 -81.170 1.843
2400 81.735 404.466 338.227 158.975 -452.790 -65.006 1.415
2500 81.843 407.805 340.944 167.154 -452.472 -48.855 1.021
 
2600 81.939 411.017 343.578 175.343 -452.183 -32.716 0.657
2700 82.025 414.111 346.133 183.541 -451.922 -16.587 0.321
2800 82.102 417.096 348.614 191.748 -451.690 -0.467 0.009
2900 82.171 419.978 351.026 199.961 -451.487 15.643 -0.282
3000 82.234 422.765 353.371 208.182 -451.311 31.748 -0.553
 
3100 82.290 425.462 355.653 216.408 -451.161 47.849 -0.806
3200 82.342 428.076 357.876 224.640 -451.038 63.943 -1.044
3300 82.389 430.610 360.042 232.876 -450.940 80.034 -1.267
3400 82.432 433.070 362.153 241.117 -450.866 96.124 -1.477
3500 82.472 435.460 364.214 249.363 -450.817 112.210 -1.675
 
3600 82.508 437.784 366.225 257.612 -450.792 128.297 -1.862
3700 82.542 440.045 368.190 265.864 -450.789 144.382 -2.038
3800 82.573 442.247 370.110 274.120 -450.809 160.469 -2.206
3900 82.601 444.392 371.987 282.379 -450.850 176.556 -2.365
4000 82.628 446.484 373.824 290.640 -450.914 192.643 -2.516
 
4100 82.653 448.524 375.621 298.904 -450.999 208.733 -2.659
4200 82.676 450.516 377.381 307.171 -451.105 224.825 -2.796
4300 82.697 452.462 379.104 315.439 -451.234 240.921 -2.927
4400 82.717 454.364 380.793 323.710 -451.383 257.019 -3.051
4500 82.735 456.223 382.449 331.983 -451.555 273.120 -3.170
 
4600 82.753 458.041 384.072 340.257 -451.749 289.225 -3.284
4700 82.769 459.821 385.665 348.533 -451.965 305.336 -3.393
4800 82.785 461.564 387.228 356.811 -452.205 321.452 -3.498
4900 82.799 463.271 388.763 365.090 -452.469 337.573 -3.599
5000 82.813 464.944 390.270 373.371 -452.757 353.700 -3.695
 
5100 82.825 466.584 391.750 381.653 -453.071 369.832 -3.788
5200 82.837 468.192 393.205 389.936 -453.412 385.969 -3.877
5300 82.849 469.770 394.634 398.220 -453.780 402.116 -3.963
5400 82.860 471.319 396.040 406.505 -454.178 418.268 -4.046
5500 82.870 472.840 397.423 414.792 -454.605 434.427 -4.126
 
5600 82.879 474.333 398.783 423.079 -455.065 450.597 -4.203
5700 82.889 475.800 400.121 431.368 -455.557 466.773 -4.277
5800 82.897 477.242 401.439 439.657 -456.084 482.960 -4.350
5900 82.906 478.659 402.735 447.947 -456.647 499.153 -4.419
6000 82.913 480.052 404.012 456.238 -457.248 515.359 -4.487
 
PREVIOUS: September 1965 (1 atm) CURRENT: September 1965 (1 bar)
 
Sulfur Trioxide (SO3) O3S1(g)

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