Sodium Hydroxide (NaOH) H1Na1O1(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 87.822 75.891 75.891 0. -416.878 -374.100 65.541 300 87.814 76.434 75.892 0.162 -416.821 -373.835 65.090 400 87.211 101.613 79.329 8.913 -416.631 -359.738 46.977 500 86.651 121.013 85.800 17.606 -414.030 -345.816 36.127 596.000 86.111 136.202 92.791 25.873 II <--> LIQUID 600 86.065 136.778 93.024 26.252 411.445 332.417 28.939 700 85.479 150.001 100.245 34.829 -408.916 -319.446 23.837 800 84.893 161.377 107.192 43.348 -406.451 -306.834 20.034 900 84.308 171.342 113.777 51.808 -404.068 -294.526 17.094 1000 83.722 180.194 119.985 60.209 -401.787 -282.478 14.755 1100 83.136 188.146 125.826 68.552 -399.626 -270.653 12.852 1200 82.550 195.355 131.324 76.837 -494.366 -256.579 11.169 1300 81.965 201.939 136.507 85.062 -491.571 -236.877 9.518 1400 81.379 207.992 141.400 93.230 -488.871 -217.387 8.111 1500 80.793 213.587 146.028 101.338 -486.266 -198.087 6.898 1600 80.207 218.782 150.415 109.388 -483.754 -178.957 5.842 1700 79.622 223.627 154.580 117.379 -481.334 -159.982 4.916 1800 79.119 228.164 158.544 125.316 -479.001 -141.147 4.096 1900 78.638 232.428 162.321 133.203 -476.749 -122.439 3.366 2000 78.199 236.450 165.928 141.045 -474.574 -103.848 2.712 2100 77.801 240.256 169.378 148.844 -472.471 -85.363 2.123 2200 77.467 243.867 172.682 156.607 -470.434 -66.977 1.590 2300 77.182 247.304 175.853 164.339 -468.457 -48.683 1.106 2400 76.956 250.584 178.899 172.046 -466.535 -30.474 0.663 2500 76.760 253.722 181.829 179.731 -464.662 -12.343 0.258