Magnesium Oxide (MgO) Mg1O1(cr,l) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 0. 0. INFINITE -5.159 -597.060 -597.060 INFINITE 100 7.802 2.548 52.212 -4.966 -598.962 -589.601 307.976 200 26.681 14.096 30.037 -3.188 -600.646 -579.488 151.347 298.15 37.106 26.924 26.924 0. -601.241 -568.945 99.677 300 37.244 27.154 26.925 0.069 -601.245 -568.745 99.027 400 42.561 38.678 28.460 4.087 -601.268 -557.898 72.854 500 45.544 48.523 31.513 8.505 -601.046 -547.078 57.153 600 47.430 57.006 35.072 13.160 -600.738 -536.312 46.690 700 48.748 64.420 38.746 17.972 -600.426 -525.600 39.221 800 49.740 70.996 42.374 22.898 -600.156 -514.930 33.621 900 50.539 76.902 45.888 27.913 -599.962 -504.289 29.268 1000 51.208 82.262 49.262 33.001 -608.462 -492.952 25.749 1100 51.794 87.171 52.488 38.151 -608.496 -481.399 22.860 1200 52.325 91.701 55.569 43.358 -608.495 -469.844 20.452 1300 52.810 95.908 58.512 48.615 -608.461 -458.291 18.414 1400 53.262 99.839 61.325 53.918 -735.804 -443.575 16.550 1500 53.693 103.528 64.017 59.266 -734.355 -422.752 14.722 1600 54.107 107.007 66.596 64.656 -732.877 -402.026 13.125 1700 54.509 110.299 69.071 70.087 -731.371 -381.394 11.719 1800 54.898 113.426 71.449 75.558 -729.837 -360.851 10.472 1900 55.278 116.404 73.737 81.067 -728.277 -340.395 9.358 2000 55.651 119.249 75.942 86.613 -726.690 -320.021 8.358 2100 56.019 121.973 78.070 92.197 -725.079 -299.727 7.455 2200 56.379 124.587 80.125 97.816 -723.442 -279.510 6.636 2300 56.738 127.101 82.114 103.472 -721.781 -259.368 5.890 2400 57.094 129.524 84.039 109.164 -720.097 -239.300 5.208 2500 57.445 131.862 85.905 114.891 -718.389 -219.301 4.582 2600 57.797 134.121 87.716 120.653 -716.659 -199.372 4.005 2700 58.145 136.309 89.476 126.450 -714.906 -179.509 3.473 2800 58.491 138.430 91.187 132.282 -713.132 -159.712 2.979 2900 58.836 140.489 92.851 138.148 -711.338 -139.979 2.521 3000 59.177 142.489 94.473 144.049 -709.524 -120.308 2.095 3100 59.516 144.436 96.053 149.987 -707.689 -100.697 1.697 3105.000 59.523 144.532 96.131 150.284 CRYSTAL <--> LIQUID 3105.000 66.944 169.595 96.131 228.107 TRANSITION 3200 66.944 171.613 98.342 234.466 -627.329 -83.538 1.364 3300 66.944 173.673 100.594 241.161 -624.772 -66.584 1.054 3400 66.944 175.671 102.773 247.855 -622.235 -49.708 0.764 3500 66.944 177.612 104.884 254.550 -619.719 -32.905 0.491 3600 66.944 179.498 106.930 261.244 -617.226 -16.174 0.235 3700 66.944 181.332 108.916 267.938 -614.757 0.487 -0.007 3800 66.944 183.117 110.846 274.633 -612.315 17.083 -0.235 3900 66.944 184.856 112.721 281.327 -609.901 33.615 -0.450 4000 66.944 186.551 114.546 288.022 -607.518 50.084 -0.654 4100 66.944 188.204 116.322 294.716 -605.167 66.495 -0.847 4200 66.944 189.817 118.053 301.410 -602.851 82.849 -1.030 4300 66.944 191.393 119.740 308.105 -600.572 99.149 -1.204 4400 66.944 192.932 121.386 314.799 -598.332 115.395 -1.370 4500 66.944 194.436 122.993 321.494 -596.133 131.591 -1.527 4600 66.944 195.907 124.562 328.188 -593.978 147.739 -1.678 4700 66.944 197.347 126.095 334.882 -591.869 163.840 -1.821 4800 66.944 198.756 127.595 341.577 -589.807 179.897 -1.958 4900 66.944 200.137 129.061 348.271 -587.796 195.912 -2.088 5000 66.944 201.489 130.496 354.966 -585.838 211.886 -2.214