Helium, Ion (He+) He1+(g) T(K) Cp S -[G-H(Tr)]/T H-H(Tr) delta-f H delta-f G log Kf 0 0. 0. INFINITE -6.197 2372.324 100 20.786 109.206 150.394 -4.119 200 20.786 123.614 133.815 -2.040 250 20.786 128.252 132.256 -1.001 298.15 20.786 131.913 131.913 0. 2378.522 2370.549 -415.310 300 20.786 132.042 131.914 0.038 2378.560 2370.499 -412.741 350 20.786 135.246 132.167 1.078 2379.599 2369.074 -353.565 400 20.786 138.022 132.729 2.117 2380.639 2367.499 -309.164 450 20.786 140.470 133.456 3.156 2381.678 2365.794 -274.614 500 20.786 142.660 134.269 4.196 2382.717 2363.974 -246.963 600 20.786 146.450 135.993 6.274 2384.796 2360.030 -205.459 700 20.786 149.654 137.721 8.353 2386.874 2355.738 -175.787 800 20.786 152.430 139.390 10.431 2388.953 2351.148 -153.514 900 20.786 154.878 140.978 12.510 2391.032 2346.298 -136.176 1000 20.786 157.068 142.479 14.589 2393.110 2341.216 -122.293 1100 20.786 159.049 143.897 16.667 2395.189 2335.926 -110.924 1200 20.786 160.858 145.236 18.746 2397.267 2330.446 -101.442 1300 20.786 162.521 146.502 20.824 2399.346 2324.794 -93.411 1400 20.786 164.062 147.702 22.903 2401.425 2318.981 -86.522 1500 20.786 165.496 148.841 24.982 2403.503 2313.020 -80.547 1600 20.786 166.837 149.925 27.060 2405.582 2306.920 -75.313 1700 20.786 168.097 150.957 29.139 2407.660 2300.690 -70.692 1800 20.786 169.286 151.943 31.217 2409.739 2294.337 -66.580 1900 20.786 170.409 152.885 33.296 2411.818 2287.869 -62.898 2000 20.786 171.476 153.788 35.375 2413.896 2281.292 -59.581 2100 20.786 172.490 154.655 37.453 2415.975 2274.611 -56.578 2200 20.786 173.457 155.488 39.532 2418.053 2267.830 -53.845 2300 20.786 174.381 156.289 41.610 2420.132 2260.955 -51.348 2400 20.786 175.265 157.062 43.689 2422.211 2253.990 -49.057 2500 20.786 176.114 157.807 45.768 2424.289 2246.938 -46.947 2600 20.786 176.929 158.527 47.846 2426.368 2239.803 -44.998 2700 20.786 177.714 159.223 49.925 2428.446 2232.588 -43.192 2800 20.786 178.469 159.897 52.004 2430.525 2225.296 -41.513 2900 20.786 179.199 160.550 54.082 2432.604 2217.930 -39.949 3000 20.786 179.904 161.183 56.161 2434.682 2210.492 -38.488 3100 20.786 180.585 161.798 58.239 2436.761 2202.985 -37.120 3200 20.786 181.245 162.396 60.318 2438.839 2195.410 -35.836 3300 20.786 181.885 162.977 62.397 2440.918 2187.771 -34.630 3400 20.786 182.505 163.542 64.475 2442.997 2180.069 -33.493 3500 20.786 183.108 164.092 66.554 2445.075 2172.305 -32.420 3600 20.786 183.693 164.629 68.632 2447.154 2164.482 -31.406 3700 20.786 184.263 165.152 70.711 2449.232 2156.602 -30.446 3800 20.786 184.817 165.662 72.790 2451.311 2148.665 -29.535 3900 20.786 185.357 166.160 74.868 2453.390 2140.673 -28.671 4000 20.786 185.883 166.647 76.947 2455.468 2132.629 -27.849 4100 20.786 186.397 167.122 79.025 2457.547 2124.532 -27.067 4200 20.786 186.898 167.587 81.104 2459.625 2116.384 -26.321 4300 20.786 187.387 168.042 83.183 2461.704 2108.187 -25.609 4400 20.786 187.864 168.487 85.261 2463.783 2099.942 -24.929 4500 20.786 188.332 168.923 87.340 2465.861 2091.650 -24.279 4600 20.786 188.788 169.350 89.418 2467.940 2083.311 -23.657 4700 20.786 189.235 169.768 91.497 2470.018 2074.927 -23.060 4800 20.786 189.673 170.178 93.576 2472.097 2066.499 -22.488 4900 20.786 190.102 170.580 95.654 2474.176 2058.027 -21.939 5000 20.786 190.522 170.975 97.733 2476.254 2049.513 -21.411 5100 20.786 190.933 171.362 99.811 2478.333 2040.958 -20.904 5200 20.786 191.337 171.743 101.890 2480.411 2032.362 -20.415 5300 20.786 191.733 172.116 103.969 2482.490 2023.725 -19.945 5400 20.786 192.121 172.483 106.047 2484.569 2015.050 -19.492 5500 20.786 192.503 172.844 108.126 2486.647 2006.336 -19.055 5600 20.786 192.877 173.198 110.204 2488.726 1997.584 -18.633 5700 20.786 193.245 173.546 112.283 2490.804 1988.796 -18.225 5800 20.786 193.607 173.889 114.362 2492.883 1979.970 -17.832 5900 20.786 193.962 174.226 116.440 2494.962 1971.109 -17.451 6000 20.786 194.311 174.558 118.519 2497.040 1962.213 -17.083