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Gas properties table name molecular formula molecular weight gas constant R http://www.fspv.com/imge/aszk322.gif Density ρ0kg/cm3 Relative density at 0℃ Boiling point TbK Specific heat ratio * 132.42～ 132.5238.4328～320 Nitrogen N228.013430.271.25061.1650.967377.351.4 * 126.134.6312 Oxygen O231.998826.51.42891.3311.105390.171.397 * 154.7851.7426.5 Argon Ar39.94821.231.7840 1.3887.2911.68150.749.6535 Neon Ne20.18342.020.9000 0.696227.091.6844.427.8483He4.003211.840.17847 0.13804.2151.665.1992.3469Kr83.8010.123.6431 2.818119.791.67209.456.1909Xe131.306.465.89 4.53165.021.666289.7559.91105 Hydrogen H22.016420.630.089880.0840.0695220.381.412 * 32.97613.231.45 MethaneCH416.04352.860.71670.6680.5544111.71.315 * 190.747.3162Ethane C2H630.0728.201.35671.2631.0494184.521.18 * 305.4549.8203 Propane C3H844.09719.232.0051.8671.5509231.051.33 * 369.9543.4220 n-Butane C4H1058.12414.592.703 2.091272.651.10 * 425.1538.71228 Isobutane C4H1058.12414.592.675 2.0692261.451.11 * 408.1537.2222 n-pentane C5H1272.15111.753.215 2.4869309.251.07 * 469.7534.37244 Ethylene C2H428.05430.231.26041.1740.975169.451.22283.0551.6227 Propylene C3H642.08120.151.9141.7841.48225.451.15 * 365.0547.1233Butene-1C4H856.10815.112.500 1.9338 * 266.851.11 * 419.1540.90233 Butene-2C4H856.10815.112.500 1.9338 * 276.851.1214 * 433.1542.89238 Transbutylene-2C4H856.10815.112.500 1.9338 * 274.051.1073 * 428.1541.89238 Isobutylene C4H856.10815.112.500 1.9338266.251.1058 * 417.8540.77234 Acetylene C2H226.03832.571.17171.0910.9063189.13 (Sublimation) 1.24309.1563.7231 Benzene C6H678.11410.863.3 2.553353.251.101562.1550.19304Carbon monoxideCO28.010630.271.25041.1650.9672 81.651.395132.9235.6301Carbon dioxideCO244.0099519.721.9771.8421.5291194.75 (Sublimation) 1.295304.1975.28468 Nitric oxide NO30.006128.261.3401 1.0366121.451.4179.1566.152 Nitrogen dioxide NO246.005518.432.055 1.59294.351.31431.35103.3570 Nitrous oxide N2O44.012819.721.9781 0.947 (3C) 298.851.31 (65℃)456.6554.8200Carbon oxysulfide COS60.074614.122.721 2.105222.95 378.1563 Ozone0347.998217.672.144 1.658161.25 261.0569.2537 Sulfur dioxide SO264.062813.242.9272.7262.264263.151.25430.6280.4524 Fluorine F237.996822.321.695 1.3185.031.358172.1556.8473ChloroCl270.90611.963.2143.002.486238.551.35417.1578.6573Methyl chlorideCH3Cl50.48816.82.3044 1.782249.391.28416.1568.1353 Ethyl chloride C5H2Cl64.51513.142.870 2.22285.451.19 455.9553.7330 Ammonia NH317.030649.790.7710.7190.5964239.751.32405.65115.0235 Freon-11CCl3F137.36866.176.20 4.8296.951.135471.1544.6554 Freon-12CCl2F2120.9147.015.39 4.17243.351.138385.1540.0558 Freon-13CClF3104.45948.124.654 3.6191.751.150 (10℃)302.0539.4578 Freon-13CC12F CC1F2187.37654.538.274 6.4320.75 487.2534.80576Note: 1.—The value at 15.6℃. 1mmHg=133Pa. 1kg/cm2=0.1MPa. 2. Density, boiling point, and specific heat ratio are at 760mmHg. This post was last edited by hw197358 on 2009-2-1 21:58 ]