J.5 Nitrogen dioxide, NO2(g)
\[\dfrac{1}{2}\mathrm{N_2}(g) + \mathrm{O_2}(g) \longrightarrow \mathrm{NO_2}(g)\]
Data
Enthalpy reference temperature (Tr = 298.15 K); Standard state pressure = p° = 0.1 MPa
- C°p, S°, and -[G°-H°(Tr)]/T in J mol–1 K–1
- ΔH°f and ΔG°f in kJ mol–1
T (K) | C°p | S° | –[G°-H°(Tr)]/T | H° -H°(Tr) | ΔH°f | ΔG°f | log Kf |
---|---|---|---|---|---|---|---|
0 | 0 | 0 | INFINITE | -10.186 | 35.927 | 35.927 | INFINITE |
100 | 33.276 | 202.563 | 271.168 | -6.861 | 34.898 | 39.963 | -20.874 |
200 | 34.385 | 225.852 | 243.325 | -3.495 | 33.897 | 45.422 | -11.863 |
250 | 35.593 | 233.649 | 240.634 | -1.746 | 33.46 | 48.355 | -10.103 |
298.15 | 36.974 | 240.034 | 240.034 | 0 | 33.095 | 51.258 | -8.98 |
300 | 37.029 | 240.262 | 240.034 | 0.068 | 33.083 | 51.371 | -8.944 |
350 | 38.583 | 246.086 | 240.491 | 1.958 | 32.768 | 54.445 | -8.125 |
400 | 40.171 | 251.342 | 241.524 | 3.927 | 32.512 | 57.56 | -7.517 |
450 | 41.728 | 256.164 | 242.886 | 5.975 | 32.31 | 60.703 | -7.046 |
500 | 43.206 | 260.638 | 244.44 | 8.099 | 32.154 | 63.867 | -6.672 |
600 | 45.834 | 268.755 | 247.83 | 12.555 | 31.959 | 70.23 | -6.114 |
700 | 47.986 | 275.988 | 251.345 | 17.25 | 31.878 | 76.616 | -5.717 |
800 | 49.708 | 282.512 | 254.84 | 22.138 | 31.874 | 83.008 | -5.42 |
900 | 51.076 | 288.449 | 258.25 | 27.179 | 31.923 | 89.397 | -5.188 |
1000 | 52.166 | 293.889 | 261.545 | 32.344 | 32.005 | 95.779 | -5.003 |
1100 | 53.041 | 298.903 | 264.717 | 37.605 | 32.109 | 102.152 | -4.851 |
1200 | 53.748 | 303.55 | 267.761 | 42.946 | 32.226 | 108.514 | -4.724 |
1300 | 54.326 | 307.876 | 270.683 | 48.351 | 32.351 | 114.867 | -4.615 |
1400 | 54.803 | 311.92 | 273.485 | 53.808 | 32.478 | 121.209 | -4.522 |
1500 | 55.2 | 315.715 | 276.175 | 59.309 | 32.603 | 127.543 | -4.441 |
1600 | 55.533 | 319.288 | 278.759 | 64.846 | 32.724 | 133.868 | -4.37 |
1700 | 55.815 | 322.663 | 281.244 | 70.414 | 32.837 | 140.186 | -4.307 |
1800 | 56.055 | 325.861 | 283.634 | 76.007 | 32.94 | 146.497 | -4.251 |
1900 | 56.262 | 328.897 | 285.937 | 81.624 | 33.032 | 152.804 | -4.201 |
2000 | 56.441 | 331.788 | 288.158 | 87.259 | 33.111 | 159.106 | -4.155 |
2100 | 56.596 | 334.545 | 290.302 | 92.911 | 33.175 | 165.404 | -4.114 |
2200 | 56.732 | 337.181 | 292.373 | 98.577 | 33.223 | 171.7 | -4.077 |
2300 | 56.852 | 339.706 | 294.377 | 104.257 | 33.255 | 177.993 | -4.042 |
2400 | 56.958 | 342.128 | 296.316 | 109.947 | 33.27 | 184.285 | -4.011 |
2500 | 57.052 | 344.455 | 298.196 | 115.648 | 33.268 | 190.577 | -3.982 |
2600 | 57.136 | 346.694 | 300.018 | 121.357 | 33.248 | 196.87 | -3.955 |
2700 | 57.211 | 348.852 | 301.787 | 127.075 | 33.21 | 203.164 | -3.93 |
2800 | 57.278 | 350.934 | 303.505 | 132.799 | 33.155 | 209.46 | -3.908 |
2900 | 57.339 | 352.945 | 305.176 | 138.53 | 33.082 | 215.757 | -3.886 |
3000 | 57.394 | 354.889 | 306.8 | 144.267 | 32.992 | 222.058 | -3.866 |
3100 | 57.444 | 356.772 | 308.382 | 150.009 | 32.885 | 228.363 | -3.848 |
3200 | 57.49 | 358.597 | 309.923 | 155.756 | 32.761 | 234.67 | -3.831 |
3300 | 57.531 | 360.366 | 311.425 | 161.507 | 32.622 | 240.981 | -3.814 |
3400 | 57.569 | 362.084 | 312.89 | 167.262 | 32.467 | 247.298 | -3.799 |
3500 | 57.604 | 363.754 | 314.319 | 173.02 | 32.297 | 253.618 | -3.785 |
3600 | 57.636 | 365.377 | 315.715 | 178.783 | 32.113 | 259.945 | -3.772 |
3700 | 57.666 | 366.957 | 317.079 | 184.548 | 31.914 | 266.276 | -3.759 |
3800 | 57.693 | 368.495 | 318.412 | 190.316 | 31.701 | 272.613 | -3.747 |
3900 | 57.719 | 369.994 | 319.715 | 196.086 | 31.475 | 278.956 | -3.736 |
4000 | 57.742 | 371.455 | 320.991 | 201.859 | 31.236 | 285.305 | -3.726 |
4100 | 57.764 | 372.881 | 322.239 | 207.635 | 30.985 | 291.659 | -3.716 |
4200 | 57.784 | 374.274 | 323.461 | 213.412 | 30.72 | 298.02 | -3.706 |
4300 | 57.803 | 375.634 | 324.659 | 219.191 | 30.444 | 304.388 | -3.698 |
4400 | 57.821 | 376.963 | 325.833 | 224.973 | 30.155 | 310.762 | -3.689 |
4500 | 57.837 | 378.262 | 326.983 | 230.756 | 29.854 | 317.142 | -3.681 |
4600 | 57.853 | 379.534 | 328.112 | 236.54 | 29.54 | 323.53 | -3.674 |
4700 | 57.867 | 380.778 | 329.219 | 242.326 | 29.214 | 329.925 | -3.667 |
4800 | 57.881 | 381.996 | 330.306 | 248.114 | 28.875 | 336.326 | -3.66 |
4900 | 57.894 | 383.19 | 331.373 | 253.902 | 28.523 | 342.736 | -3.654 |
5000 | 57.906 | 384.36 | 332.421 | 259.692 | 28.158 | 349.152 | -3.648 |
5100 | 57.917 | 385.507 | 333.451 | 265.483 | 27.778 | 355.576 | -3.642 |
5200 | 57.928 | 386.631 | 334.463 | 271.276 | 27.384 | 362.006 | -3.636 |
5300 | 57.938 | 387.735 | 335.458 | 277.069 | 26.974 | 368.446 | -3.631 |
5400 | 57.948 | 388.818 | 336.436 | 282.863 | 26.548 | 374.892 | -3.626 |
5500 | 57.957 | 389.881 | 337.398 | 288.658 | 26.106 | 381.347 | -3.622 |
5600 | 57.965 | 390.926 | 338.344 | 294.455 | 25.646 | 387.811 | -3.617 |
5700 | 57.973 | 391.952 | 339.276 | 300.251 | 25.167 | 394.281 | -3.613 |
5800 | 57.981 | 392.96 | 340.193 | 306.049 | 24.669 | 400.762 | -3.609 |
5900 | 57.988 | 393.951 | 341.096 | 311.848 | 24.15 | 407.249 | -3.606 |
6000 | 57.995 | 394.926 | 341.985 | 317.647 | 23.608 | 413.748 | -3.602 |