气 体 的 性 质 表

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1、气 体 的 性 质 表名称分子式分子量气体常数RKgf·m/Kg·K密度ρokg/m3比重0℃760mmHg下(空气=1)沸点TbK在760mmHg下比热在20℃及760mmHg下临界点在0℃760mmHg下在20℃760mmHg下温度ToK压力Pokgf/c㎡密度ρokg/m3空气28.9629.281.29281.2051.0078.81.4*132.42~132.5238.4328~320氮N228.013430.271.25061.1650.967377.351.4*126.134.6312氧O231.998826.51.42891.3311.105390.171

2、.397*154.7851.7426.5氩Ar39.94821.231.7840 1.3887.2911.68150.749.6535氖Ne20.18342.020.9000 0.696227.091.6844.427.8483氦He4.003211.840.17847 0.13804.2151.665.1992.3469氪Kr83.8010.123.6431 2.818119.791.67209.456.1909氙Xe131.306.465.89 4.53165.021.666289.7559.91105氢H22.016420.630.089880.0840.69522

3、0.381.412*32.97613.231.45甲 烷CH416.04352.860.71670.6680.5544111.71.315*190.747.3162乙 烷C2H630.0728.201.35671.2631.0494184.521.18*305.4549.8203丙 烷C3H844.09719.232.0051.8671.5509231.051.33*369.9543.4220正丁烷C4H1058.12414.592.703 2.091272.651.10*425.1538.71228异丁烷C4H1058.12414.592.675 2.0692261.4

4、51.11*408.1537.2222正戊烷C5H1272.15111.753.215 2.4869309.251.07*469.7534.37244乙 稀C2H428.05430.231.26041.1740.975169.451.22283.0551.6227丙 稀C3H642.08120.151.9141.7841.48225.451.15*365.0547.1233丁 烯—1C4H856.10815.112.500 1.9338*266.851.11*419.1540.90233顺丁烯—2C4H856.10815.112.500 1.9338*276.851.12

5、14*433.1542.89238反丁稀—2C4H856.10815.112.500 1.9338*274.051.1073*428.1541.83238异丁稀C4H856.10815.112.500 1.9338266.251.1058*417.8540.77234乙 炔C2H226.03832.571.17171.0910.9063189.13(升华)1.24309.1563.7231苯C6H678.11410.863.32.553353.251.101562.1550.19304一氧化碳CO28.010630.271.25041.1650.967281.651.39

6、5132.9235.6301二氧化碳CO244.0099519.721.9771.8421.5291194.75(升华)1.295304.1975.28468一氧化氮NO30.006128.261.3401 1.0366121.451.4179.1566.152二氧化氮NO246.005518.432.055 1.59294.351.31431.35103.3570一氧化二氮N2O44.012819.721.9781 1.530184.691.274309.7174.1457硫化氢H2S34.0799424.881.5391.4341.1904212.851.32373.

7、5591.8373氢氰酸HCN27.025831.381.2246 0.947(3℃)298.851.31(65℃)456.6554.8200氧硫化碳COS60.074614.122.721 2.105222.95378.1563臭氧O347.998217.672.144 1.658161.25261.0569.2537二氧化硫SO264.062813.242.9272.7262.264263.151.25430.6280.4524氟F237.996822.321.6951.3185.031.358172.1556.8473氯