Tabela dos Potenciais de Lennard-Jones e Tabela dos volumes aTnormal e volumes de difusão(2)
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5.1/ Diffusion Coefficients in Gases 105 Table 5.1-2. Lennard-Jones potential parameters foundfrom viscosities Substance a(Á) e/kB(OK) Ar Argon 3.542 93.3 He Heliurn 2.551 10.22 Kr Krypton 3.655 178.9 Ne Neon 2.820 32.8 Xe Xenon 4.047 231.0 Air Air 3.711 78.6 Br2 Bromine 4.296 507.9 CC4 Carbon tetrachloride 5.947 322.7 CF 4 Carbon tetrafluoride 4.662 134.0 CHCI 3 Chlorofonn 5.389 340.2 CH 2 CI 2 Methylene chloride 4.898 356.3 CH3Br Methyl bromide 4.118 449.2 CH 3 CI Methyl chloride 4.182 350 CH 3 0H Methanol 3.626 481.8 C~ Methane 3.758 148.6 CO Carbon monoxide 3.690 91.7 CO 2 Carbon dioxide 3.941 195.2 CS 2 Carbon disulfide 4.483 467 C 2 H 2 Acetylene 4.033 231.8 C2~ Ethylene 4.163 224.7 C 2 H 6 Ethane 4.443 215.7 C 2 H s CI Ethyl chloride 4.898 300 C 2 H s OH Ethanol 4.530 362.6 CH 3 OCH 3 Methyl ether 4.307 395.0 CH 2 CHCH 3 Propylene 4.678 298.9 CH 3 CCH Methylacetylene 4.761 251.8 C3~ Cyclopropane 4.807 248.9 C3HS Propane 5.118 237.1 n-C 3 H 7 OH n-Propyl alcohol 4.549 576.7 CH 3 COCH 3 Acetone 4.600 560.2 CH 3 COOCH 3 Methyl acetate 4.936 469.8 n-C4HIO n-Butane 4.687 531.4 iso-C 4 H IO Isobutane 5.278 330.1 C 2 H s OC 2 H 5 . Ethyl ether 5.678 313.8 CH 3 COOC 2 H s Ethyl acetate 5.205 521.3 n-C5H12 n-Pentane 5.784 341.1 C(CH 3 )4 2,2-Dimethylpropane 6.464 193.4 C6~ Benzene 5.349 412.3 C 6 H I2 Cyclohexane 6.182 297.1 n-C 6 H14 n-Hexane 5.949 399.3 CI 2 Chlorine 4.217 316.0 F 2 F1uorine 3.357 112.6 HEr Hydrogen bromide 3.353 449 HCN Hydrogen cyanide 3.630 569.1 HCI Hydrogen chloride 3.339 344.7 HF Hydrogen fluoride _ 3.148 330 RI Hydrogen iodide 4.211 288.7 H 2 Hydrogen 2.827 59.7 H 2 0 Water 2.641 809.1 H 2 0 2 Hydrogen peroxide 4.196 289.3 H 2 S Hydrogen sulfide 3.623 301.1 Hg Mercury 2.969 750 1 2 Iodine 5.160 474.2 NH 3 Arnrnonia 2.900 558.3 NO Nitric oxide 3.492 116.7 N 2 Nitrogen 3.798 71.4 N 2 0 Nitrous oxide 3.828 232.4 O 2 Oxygen 3.467 106.7 PH 3 Phosphine 3.981 251.5 S02 Sulfur dioxide 4.112 335.4 -; UF 6 Uraniurn hexafluoride 5.967 236.8 ",~ Note: Data from Hirschfelder et al. (1954).
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Transcript of Tabela dos Potenciais de Lennard-Jones e Tabela dos volumes aTnormal e volumes de difusão(2)
5.1/ Diffusion Coefficients in Gases 105
Table 5.1-2. Lennard-Jones potential parameters foundfrom viscosities
Substance a(Á) e/kB(OK)
Ar Argon 3.542 93.3He Heliurn 2.551 10.22Kr Krypton 3.655 178.9Ne Neon 2.820 32.8Xe Xenon 4.047 231.0Air Air 3.711 78.6Br2 Bromine 4.296 507.9CC4 Carbon tetrachloride 5.947 322.7CF4 Carbon tetrafluoride 4.662 134.0CHCI3 Chlorofonn 5.389 340.2CH2CI2 Methylene chloride 4.898 356.3CH3Br Methyl bromide 4.118 449.2CH3CI Methyl chloride 4.182 350CH30H Methanol 3.626 481.8C~ Methane 3.758 148.6CO Carbon monoxide 3.690 91.7CO2 Carbon dioxide 3.941 195.2CS2 Carbon disulfide 4.483 467C2H2 Acetylene 4.033 231.8C2~ Ethylene 4.163 224.7C2H6 Ethane 4.443 215.7C2HsCI Ethyl chloride 4.898 300C2HsOH Ethanol 4.530 362.6CH3OCH3 Methyl ether 4.307 395.0CH2CHCH3 Propylene 4.678 298.9CH3CCH Methylacetylene 4.761 251.8C3~ Cyclopropane 4.807 248.9C3HS Propane 5.118 237.1n-C3H7OH n-Propyl alcohol 4.549 576.7CH3COCH3 Acetone 4.600 560.2CH3COOCH3 Methyl acetate 4.936 469.8n-C4HIO n-Butane 4.687 531.4iso-C4HIO Isobutane 5.278 330.1C2HsOC2H5. Ethyl ether 5.678 313.8CH3COOC2Hs Ethyl acetate 5.205 521.3n-C5H12 n-Pentane 5.784 341.1C(CH3)4 2,2-Dimethylpropane 6.464 193.4C6~ Benzene 5.349 412.3C6HI2 Cyclohexane 6.182 297.1n-C6H14 n-Hexane 5.949 399.3CI2 Chlorine 4.217 316.0F2 F1uorine 3.357 112.6HEr Hydrogen bromide 3.353 449HCN Hydrogen cyanide 3.630 569.1HCI Hydrogen chloride 3.339 344.7HF Hydrogen fluoride _ 3.148 330RI Hydrogen iodide 4.211 288.7H2 Hydrogen 2.827 59.7H20 Water 2.641 809.1H202 Hydrogen peroxide 4.196 289.3H2S Hydrogen sulfide 3.623 301.1
Hg Mercury 2.969 75012 Iodine 5.160 474.2NH3 Arnrnonia 2.900 558.3NO Nitric oxide 3.492 116.7N2 Nitrogen 3.798 71.4N20 Nitrous oxide 3.828 232.4O2 Oxygen 3.467 106.7PH3 Phosphine 3.981 251.5S02 Sulfur dioxide 4.112 335.4 -;UF6 Uraniurn hexafluoride 5.967 236.8
",~Note: Data from Hirschfelder et al. (1954).
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5.1 I Diffusion Coefficients in Gases 107
Table 5.1-3. The collision integral Q
kBT/8 Q kBT/r; Q kBT/r; Q
0.30 2.662 1.65 1.153 4.0 0.88360.35 2.476 1.70 1.140 4.1 0.8788OAO 2.318 1.75 1.128 4.2 0.8740OA5 2.184 1.80 1.116 4.3 0.86940.50 2.066 1.85 1.105 4A 0.8652
0.55 1.966 1.90 1.094 4.5 0.86100.60 1.877 1.95 1.084 4.6 0.85680.65 1.798 2.00 1.075 4.7 0.85300.70 1.729 2.1 1.057 4.8 0.84920.75 1.667 2.2 1.041 4.9 0.8456
0.80 1.612 2.3 1.026 5.0 0.84220.85 1.562 2.4 1.012 6 0.81240.90 1.517 2.5 0.9996 7 0.78960.95 1.476 2.6 0.9878 8 0.77121.00 1.439 2.7 0.9770 9 0.75561.05 1.406 2.8 0.9672 10 0.74241.10 1.375 2.9 0.9576 20 0.6640115 1.346 3.0 0.9490 30 0.62321.20 1.320 3.1 0.9406 40 0.59601.25 1.296 3.2 0.9328 50 0.57561.30 1.273 3.3 0.9256 60 0.55961.35 1.253 3A 0.9186 70 0.54641AO 1.233 3.5 0.9120 80 0.5352IAS 1.215 3.6 0.9058 90 0.52561.50 1198 3.7 0.8998 100 0.51301.55 1.182 3.8 0.8942 200 OA6441.60 1.167 3.9 0.8888 300 0.4360
Source: Data from Hirschfelder et a!. (1954).
CHO(N)
TAll.LE 2-2.. ATOMIC AND MOLECULAR DIFFUSION VOLUMES. .. FOR.THE EQUATION OF FULLER ET AL. (1966)<
Ato~ic and Structural Diffusion Volume Increments, v X 103 (m3/kgatom)
16.51.985.485.69
(Cl)(S)Aromatic ringHeterocyclic ring
HzDzHeNzOzAirArKr
(Xe)Ne
7.076.702.88
17.916.620.116.122.837.95.59
COCOzNzONH3HzO
(CChFz)(SF6)(Ch)(Brz)(SOz)
19.517.0
-20.2-20:2
18.926.935.914.912.7
114.869.737.7.67.241.1
<Parentheses indicate that the value listed is based on only a few data points.
TABLE 2-1. ATOMIC AND MOLECULAR VOLUMES AT THE NORMAL BOILING POINT
ITREYBAL, 1968)
Atomic Volume x 103
(m3/kgatom)Molecular Volume x 103
(m3/kgmol)
BromineCarbonChlorineHydrogenIodineNitrogenNitrogen in prirnary aminesNitrogen in secondary aminesOxygenOxygen in methyl estersOxygen in higher estersOxygen in acidsOxygen in methyl ethersOxygen in higher ethersSulfurBenzene ringNaphtbalene ring
27.0.14.8"'2"4:6
3.737.015.610.512.07.49.1 .
H.O12.09.9
11.025.6
-15.0-30.0
AirBrzChCOCOzCOSH2HzOHzShNzNH3NONzOOzSOz
29.953.248.430.734.051.514.318.932.971.531.225.823.6·36.425,(>44:8
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