Helium, Ion (He+)								He1+(g)
Enthalpy Reference Temperature = Tr = 298.15 K								Standard State Pressure = p° = 0.1 MPa
		J·K-1 mol-1						kJ·mol-1
T/K		Cp°		S°		-[G°-H°(Tr)]/T		H-H°(Tr)		fH°		fG°		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
PREVIOUS: March 1977 (1 atm)								CURRENT: March 1982 (1 bar)
Helium, Ion (He+)								He1+(g)

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