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Isothermal Properties for Hydrogen

Fluid Data

Isothermal Data for T = 288.00 K

Temperature (K)Pressure (MPa)Density (mol/l)Volume (l/mol)Internal Energy (kJ/mol)Enthalpy (kJ/mol)Entropy (J/mol*K)Cv (J/mol*K)Cp (J/mol*K)Sound Spd. (m/s)Joule-Thomson (K/MPa)Viscosity (uPa*s)Therm. Cond. (W/m*K)Phase
288.001.00000.415122.40895.23217.641087.54720.45728.8151301.2-0.284168.72900.18075vapor
288.002.00000.825301.21175.22597.649381.76320.47528.8741309.9-0.289698.75380.18157vapor
288.002.00000.825301.21175.22597.649381.76320.47528.8741309.9-0.289698.75380.18157supercritical
288.002.00000.825301.21175.22597.649381.76320.47528.8741309.9-0.289698.75380.18157supercritical
288.003.00001.23060.812635.21997.657778.37120.49228.9311318.5-0.295558.77840.18239supercritical
288.004.00001.63100.613125.21397.666475.95920.50928.9861327.2-0.301648.80300.18320supercritical
288.005.00002.02660.493435.20817.675274.08420.52629.0391335.9-0.307888.82760.18402supercritical
288.006.00002.41750.413665.20237.684372.54920.54329.0911344.7-0.314218.85240.18484supercritical
288.007.00002.80360.356695.19677.693571.24920.56029.1411353.5-0.320578.87730.18567supercritical
288.008.00003.18500.313975.19127.703070.12020.57829.1881362.4-0.326918.90240.18650supercritical
288.009.00003.56180.280765.18587.712669.12420.59529.2341371.2-0.333208.92780.18733supercritical
288.0010.0003.93400.254205.18057.722468.23120.61229.2791380.2-0.339408.95350.18816supercritical
288.0011.0004.30160.232475.17537.732567.42220.62829.3211389.1-0.345498.97970.18900supercritical
288.0012.0004.66480.214375.17027.742766.68220.64529.3621398.1-0.351469.00630.18985supercritical
288.0013.0005.02350.199075.16537.753166.00220.66229.4011407.1-0.357289.03340.19069supercritical
288.0014.0005.37780.185955.16047.763765.37020.67929.4391416.1-0.362959.06100.19154supercritical
288.0015.0005.72780.174595.15577.774564.78220.69629.4751425.2-0.368479.08930.19240supercritical
288.0016.0006.07350.164655.15107.785464.23220.71229.5101434.2-0.373819.11820.19326supercritical
288.0017.0006.41490.155895.14657.796563.71420.72929.5431443.3-0.379009.14760.19412supercritical
288.0018.0006.75220.148105.14207.807863.22620.74529.5751452.4-0.384019.17770.19499supercritical
288.0019.0007.08550.141135.13777.819262.76420.76229.6061461.5-0.388859.20850.19586supercritical
288.0020.0007.41460.134875.13357.830862.32520.77829.6351470.5-0.393549.23980.19673supercritical
288.0021.0007.73980.129205.12937.842661.90720.79529.6641479.6-0.398059.27170.19761supercritical
288.0022.0008.06110.124055.12537.854461.50920.81129.6911488.7-0.402419.30420.19849supercritical
288.0023.0008.37850.119355.12137.866561.12820.82729.7181497.8-0.406619.33710.19937supercritical
288.0024.0008.69210.115055.11757.878660.76420.84429.7431506.9-0.410679.37050.20026supercritical
288.0025.0009.00190.111095.11377.890960.41420.86029.7671516.0-0.414579.40430.20116supercritical
288.0026.0009.30810.107435.11007.903360.07820.87629.7911525.0-0.418339.43850.20205supercritical
288.0027.0009.61070.104055.10647.915859.75420.89229.8131534.1-0.421969.47290.20295supercritical
288.0028.0009.90970.100915.10297.928559.44220.90829.8351543.1-0.425469.50760.20385supercritical
288.0029.00010.2050.0979895.09957.941259.14120.92429.8561552.2-0.428839.54250.20476supercritical
288.0030.00010.4970.0952635.09627.954158.85020.94029.8761561.2-0.432079.57750.20567supercritical
288.0031.00010.7860.0927135.09297.967058.56920.95529.8961570.2-0.435209.61260.20659supercritical
288.0032.00011.0710.0903235.08977.980158.29720.97129.9151579.2-0.438229.64780.20750supercritical
288.0033.00011.3530.0880795.08667.993258.03320.98729.9331588.2-0.441139.68300.20842supercritical
288.0034.00011.6320.0859675.08368.006557.77621.00329.9501597.1-0.443939.71820.20935supercritical
288.0035.00011.9080.0839775.08068.019857.52821.01829.9671606.1-0.446649.75350.21027supercritical
288.0036.00012.1810.0820975.07788.033357.28621.03429.9831615.0-0.449259.78870.21120supercritical
288.0037.00012.4500.0803195.07508.046857.05121.04929.9991623.9-0.451779.82390.21214supercritical
288.0038.00012.7170.0786355.07228.060456.82221.06430.0141632.8-0.454209.85910.21307supercritical
288.0039.00012.9810.0770385.06958.074056.60021.08030.0291641.7-0.456559.89430.21401supercritical
288.0040.00013.2410.0755215.06698.087856.38221.09530.0431650.5-0.458819.92950.21495supercritical
288.0041.00013.4990.0740785.06448.101656.17121.11030.0561659.3-0.461009.96480.21590supercritical
288.0042.00013.7540.0727045.06198.115555.96421.12530.0691668.1-0.4631210.0000.21685supercritical
288.0043.00014.0070.0713945.05958.129455.76321.14030.0821676.9-0.4651610.0350.21780supercritical
288.0044.00014.2560.0701445.05718.143555.56621.15530.0941685.7-0.4671410.0710.21875supercritical
288.0045.00014.5030.0689495.05488.157655.37321.17030.1061694.4-0.4690510.1060.21971supercritical
288.0046.00014.7480.0678075.05268.171755.18521.18530.1171703.1-0.4708910.1410.22067supercritical
288.0047.00014.9900.0667125.05048.185955.00121.20030.1281711.8-0.4726810.1770.22163supercritical
288.0048.00015.2290.0656645.04838.200254.82021.21530.1391720.4-0.4744010.2130.22260supercritical
288.0049.00015.4660.0646585.04638.214554.64421.22930.1491729.1-0.4760710.2480.22356supercritical
288.0050.00015.7000.0636935.04428.228954.47121.24430.1591737.7-0.4776810.2840.22453supercritical
288.0051.00015.9320.0627655.04238.243354.30121.25930.1691746.3-0.4792410.3200.22551supercritical
288.0052.00016.1620.0618745.04048.257854.13521.27330.1781754.8-0.4807510.3560.22648supercritical
288.0053.00016.3890.0610155.03858.272353.97221.28830.1871763.4-0.4822110.3930.22746supercritical
288.0054.00016.6140.0601895.03678.286953.81321.30230.1951771.9-0.4836310.4290.22844supercritical
288.0055.00016.8370.0593925.03508.301653.65621.31630.2041780.4-0.4849910.4660.22942supercritical
288.0056.00017.0580.0586245.03338.316253.50221.33130.2121788.8-0.4863210.5020.23041supercritical
288.0057.00017.2760.0578825.03168.330953.35121.34530.2191797.3-0.4876010.5390.23139supercritical
288.0058.00017.4930.0571665.03008.345753.20221.35930.2271805.7-0.4888410.5760.23238supercritical
288.0059.00017.7070.0564755.02858.360553.05621.37330.2341814.1-0.4900410.6140.23337supercritical
288.0060.00017.9190.0558065.02708.375352.91321.38730.2411822.4-0.4911910.6510.23437supercritical
288.0061.00018.1290.0551595.02558.390252.77221.40130.2481830.8-0.4923210.6890.23643supercritical
288.0062.00018.3380.0545335.02418.405152.63321.41530.2541839.1-0.4934010.7270.23850supercritical
288.0063.00018.5440.0539265.02278.420152.49721.42930.2611847.4-0.4944510.7650.24056supercritical
288.0064.00018.7480.0533395.02148.435052.36321.44330.2671855.6-0.4954710.8030.24262supercritical
288.0065.00018.9510.0527695.02018.450052.23121.45730.2731863.8-0.4964510.8410.24468supercritical
288.0066.00019.1510.0522165.01888.465152.10121.47030.2781872.0-0.4974010.8800.24674supercritical
288.0067.00019.3500.0516805.01768.480251.97321.48430.2841880.2-0.4983210.9180.24879supercritical
288.0068.00019.5470.0511605.01648.495351.84621.49730.2891888.4-0.4992010.9570.25085supercritical
288.0069.00019.7420.0506545.01538.510451.72221.51130.2941896.5-0.5000610.9960.25290supercritical
288.0070.00019.9350.0501635.01428.525651.60021.52430.2991904.6-0.5008911.0360.25495supercritical
288.0071.00020.1270.0496855.01318.540851.47921.53830.3041912.7-0.5016911.0750.25700supercritical
288.0072.00020.3170.0492215.01218.556051.36021.55130.3091920.7-0.5024611.1150.25904supercritical
288.0073.00020.5050.0487695.01118.571251.24321.56530.3131928.7-0.5032111.1550.26109supercritical
288.0074.00020.6920.0483295.01018.586551.12821.57830.3171936.7-0.5039311.1950.26313supercritical
288.0075.00020.8770.0479015.00928.601851.01421.59130.3221944.7-0.5046211.2350.26517supercritical
288.0076.00021.0600.0474835.00838.617150.90121.60430.3261952.6-0.5053011.2750.26721supercritical
288.0077.00021.2420.0470775.00758.632450.79021.61730.3301960.5-0.5059411.3160.26925supercritical
288.0078.00021.4220.0466815.00678.647850.68121.63030.3331968.4-0.5065711.3570.27128supercritical
288.0079.00021.6010.0462945.00598.663150.57321.64330.3371976.3-0.5071711.3980.27332supercritical
288.0080.00021.7780.0459175.00518.678550.46621.65630.3411984.1-0.5077511.4390.27535supercritical

Auxiliary Data

Reference States, Normal Boiling Point Convention

Additional fluid properties

References

Equation of state and auxiliary model

Leachman, J.W.; Jacobsen, R.T.; Lemmon, E.W., Fundamental Equations of State for Parahydrogen, Normal Hydrogen, and Orthohydrogen, to be published in J. Phys. Chem. Ref. Data, 2008. [all data]

Auxiliary model and surface tension

McCarty, R.D.; Hord, J.; Roder, H.M., Selected Properties of Hydrogen (Engineering Design Data), NBS Monograph 168, National Bureau of Standards, Boulder, CO, 1981, 0. [all data]

Thermal conductivity and dielectric constant

Kunz, O.; Klimeck, R.; Wagner, W.; Jaeschke, M., The GERG-2004 Wide-Range Reference Equation of State for Natural Gases and Other Mixtures, to be published as a GERG Technical Monograph, Fortschr.-Ber. VDI, VDI-Verlag, Düsseldorf, 2006. [all data]

Additional Information

Equation of state

The uncertainty in density is 0.1% at temperatures from the triple point to 250 K and at pressures up to 40 MPa, except in the critical region, where an uncertainty of 0.2% in pressure is generally attained. In the region between 250 and 450 K and at pressures from 0.1 to 300 MPa, the uncertainty in density is 0.04%. At temperatures between 450 and 1000 K, the uncertainty in density increases to 1%. At pressures between 300 and 2000 MPa, the uncertainty in density is 8%. Speed of sound data are represented within 0.5% below 100 MPa. The estimated uncertainty for heat capacities is 1.0%. The estimated uncertainties of vapor pressures and saturated liquid densities calculated using the Maxwell criterion are 0.2% for each property.

Thermal conductivity

The uncertainty in thermal conductivity below 100 K is estimated to be 3% below 150 atm and up to 10% below 700 atm. For temperatures around 100 K at low densities, the uncertainty is about 1%. Above 100 K, the uncertainty is estimated to be on the order of 10%.

Viscosity

The uncertainty in viscosity ranges from 4% to 15%.

The fluid data above is also available from the NIST Reference Fluid Thermodynamic and Transport Properties Database. This product includes additional features not available from this web site.

Notes