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100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 密度ρ(kg/m)
30.923 0.935 0.950 0.965 0.979 0.993 1.005 1.016 1.026 1.035 1.043 1.051 1.058 1.065 1.071 1.077 1.083 1.089 1.094 1.099 1.104 1.109 1.114 1.118 1.123 1.4286 1.040 1.043 1.049 1.057 1.066 1.076 1.087 1.097 1.108 1.118 1.127 1.136 1.145 1.153 1.160 1.167 1.174 1.180 1.186 1.191 1.197 1.201 1.206 1.210 1.214 1.2505 14.353 14.421 14.446 14.477 14.509 14.542 14.587 14.641 14.706 14.776 14.853 14.934 15.023 15.113 15.202 15.294 15.383 15.472 15.561 15.649 15.736 15.819 15.902 15.983 16.064 0.08999 1.042 1.046 1.054 1.063 1.075 1.086 1.098 1.109 1.120 1.130 1.140 1.149 1.158 1.166 1.173 1.180 1.187 1.192 1.198 1.203 1.208 1.213 1.218 1.222 1.226 1.2505 1.006 1.012 1.019 1.028 1.039 1.050 1.061 1.071 1.081 1.091 1.100 1.108 1.117 1.124 1.131 1.138 1.144 1.150 1.156 1.161 1.166 1.171 1.176 1.180 1.182 1.2932 0.866 0.910 0.949 0.983 1.013 1.040 1.064 1.085 1.104 1.122 1.138 1.153 1.166 1.178 1.189 1.200 1.209 1.218 1.226 1.233 1.241 1.247 1.253 1.259 1.264 1.9648 1.873 1.894 1.919 1.948 1.978 2.009 2.042 2.075 2.110 2.144 2.177 2.211 2.243 2.274 2.305 2.335 2.363 2.391 2.417 2.442 2.466 2.489 2.512 2.533 2.554 0.8042 几种气体的临界参数和范德瓦尔常数
物质名称 Tc (K) pc (MPa) a?103 (MPa.m/kmol) 62b?103 (m/kmol) 3精品
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He H2 N2 O2 CO2 NH3 H2O CH4 CO 5.3 33.3 126.2 154.8 304.2 405.5 647.3 190.7 133.0 0.22901 1.29702 3.39456 5.07663 7.38696 11.29830 22.12970 4.64091 3.49589 几种气体的临界压缩因子
物质 He 0.300 H2 0.304 N2 0.297 O2 0.292 CO2 0.274 NH3 0.238 H2O 0.230 CO 0.294 CH4 0.290 3.5767 24.9304 136.8115 137.6429 365.2920 424.3812 552.1069 228.5001 147.5479 24.05 26.68 38.63 31.68 42.78 37.30 30.39 42.69 39.53 zc
图2-5 通用压缩因子图