Sodium Oxide (Na2O) Na2O1(l) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 100 200 298.15 104.600 91.607 91.607 0. -372.843 -338.890 59.372 300 104.600 92.254 91.609 0.194 -372.780 -338.680 58.969 400 104.600 122.346 95.712 10.654 -375.049 -327.373 42.751 500 104.600 145.687 103.460 21.114 -372.321 -315.766 32.988 600 104.600 164.757 112.135 31.574 -369.474 -304.721 26.528 700 104.600 180.882 120.834 42.034 -366.545 -294.160 21.950 800 104.600 194.849 129.232 52.494 -363.572 -284.022 18.545 900 104.600 207.169 137.221 62.954 -360.589 -274.257 15.917 1000 104.600 218.190 144.776 73.414 -357.635 -264.824 13.833 1100 104.600 228.159 151.911 83.874 -354.746 -255.683 12.141 1200 104.600 237.261 158.649 94.334 -545.481 -241.922 10.531 1300 104.600 245.633 165.023 104.794 -540.970 -216.808 8.711 1400 104.600 253.385 171.061 115.254 -536.474 -192.041 7.165 1405.200 104.600 253.773 171.366 115.797 ALPHA <--> LIQUID 1500 104.600 260.601 176.792 125.714 531.992 167.596 5.836 1600 104.600 267.352 182.244 136.174 -527.523 -143.448 4.683 1700 104.600 273.693 187.438 146.634 -523.066 -119.580 3.674 1800 104.600 279.672 192.398 157.094 -518.622 -95.974 2.785 1900 104.600 285.328 197.142 167.554 -514.191 -72.614 1.996 2000 104.600 290.693 201.686 178.014 -509.772 -49.488 1.292 2100 104.600 295.796 206.047 188.474 -505.367 -26.582 0.661 2200 104.600 300.662 210.238 198.934 -500.976 -3.886 0.092 2300 104.600 305.312 214.271 209.394 -496.600 18.611 -0.423 2400 104.600 309.764 218.158 219.854 -492.240 40.918 -0.891 2500 104.600 314.034 221.908 230.314 -487.899 63.044 -1.317 2600 104.600 318.136 225.531 240.774 -483.576 84.996 -1.708 2700 104.600 322.084 229.034 251.234 -479.275 106.783 -2.066 2800 104.600 325.888 232.426 261.694 -474.998 128.410 -2.396 2900 104.600 329.559 235.712 272.154 -470.745 149.885 -2.700 3000 104.600 333.105 238.900 282.614 -466.522 171.214 -2.981