Physics:Van der Waals constants (data page)
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Short description: Table of constants for a list of gases and volatile liquids
The following table lists the Van der Waals constants (from the Van der Waals equation) for a number of common gases and volatile liquids.[1]
To convert from [math]\displaystyle{ L^2bar/mol^2 }[/math] to [math]\displaystyle{ L^2 kPa/mol^2 }[/math], multiply by 100.
To convert from [math]\displaystyle{ L^2bar/mol^2 }[/math] to [math]\displaystyle{ m^6 Pa/mol^2 }[/math], divide by 10.
To convert from [math]\displaystyle{ L/mol }[/math] to [math]\displaystyle{ m^3/mol }[/math], divide by 1000.
| a (L2bar/mol2) | b (L/mol) | |
|---|---|---|
| Acetic acid | 17.7098 | 0.1065 |
| Acetic anhydride | 20.158 | 0.1263 |
| Acetone | 16.02 | 0.1124 |
| Acetonitrile | 17.81 | 0.1168 |
| Acetylene | 4.516 | 0.0522 |
| Ammonia | 4.225 | 0.0371 |
| Aniline[2] | 29.14 | 0.1486 |
| Argon | 1.355 | 0.03201 |
| Benzene | 18.24 | 0.1193 |
| Bromobenzene | 28.94 | 0.1539 |
| Butane | 14.66 | 0.1226 |
| 1-Butanol[2] | 20.94 | 0.1326 |
| 2-Butanone[2] | 19.97 | 0.1326 |
| Carbon dioxide | 3.640 | 0.04267 |
| Carbon disulfide | 11.77 | 0.07685 |
| Carbon monoxide | 1.505 | 0.0398500 |
| Carbon tetrachloride | 19.7483 | 0.1281 |
| Chlorine | 6.579 | 0.05622 |
| Chlorobenzene | 25.77 | 0.1453 |
| Chloroethane | 11.05 | 0.08651 |
| Chloromethane | 7.570 | 0.06483 |
| Cyanogen | 7.769 | 0.06901 |
| Cyclohexane | 23.11 | 0.1424 |
| Cyclopropane[2] | 8.34 | 0.0747 |
| Decane[2] | 52.74 | 0.3043 |
| 1-Decanol[2] | 59.51 | 0.3086 |
| Diethyl ether | 17.61 | 0.1344 |
| Diethyl sulfide | 19.00 | 0.1214 |
| Dimethyl ether | 8.180 | 0.07246 |
| Dimethyl sulfide | 13.04 | 0.09213 |
| Dodecane[2] | 69.38 | 0.3758 |
| 1-Dodecanol[2] | 75.70 | 0.3750 |
| Ethane | 5.562 | 0.0638 |
| Ethanethiol | 11.39 | 0.08098 |
| Ethanol | 12.18 | 0.08407 |
| Ethyl acetate | 20.72 | 0.1412 |
| Ethylamine | 10.74 | 0.08409 |
| Ethylene[2] | 4.612 | 0.0582 |
| Fluorine[2] | 1.171 | 0.0290 |
| Fluorobenzene | 20.19 | 0.1286 |
| Fluoromethane | 4.692 | 0.05264 |
| Freon | 10.78 | 0.0998 |
| Furan[2] | 12.74 | 0.0926 |
| Germanium tetrachloride | 22.90 | 0.1485 |
| Helium | 0.0346 | 0.0238 |
| Heptane[2] | 31.06 | 0.2049 |
| 1-Heptanol[2] | 38.17 | 0.2150 |
| Hexane | 24.71 | 0.1735 |
| 1-Hexanol[2] | 31.79 | 0.1856 |
| Hydrazine[2] | 8.46 | 0.0462 |
| Hydrogen | 0.2476 | 0.02661 |
| Hydrogen bromide | 4.510 | 0.04431 |
| Hydrogen chloride | 3.716 | 0.04081 |
| Hydrogen cyanide[2] | 11.29 | 0.0881 |
| Hydrogen fluoride[2] | 9.565 | 0.0739 |
| Hydrogen iodide[2] | 6.309 | 0.0530 |
| Hydrogen selenide | 5.338 | 0.04637 |
| Hydrogen sulfide | 4.490 | 0.04287 |
| Isobutane[2] | 13.32 | 0.1164 |
| Iodobenzene | 33.52 | 0.1656 |
| Krypton | 2.349 | 0.03978 |
| Mercury | 8.200 | 0.01696 |
| Methane | 2.253 | 0.04278 |
| Methanol | 9.649 | 0.06702 |
| Methylamine[2] | 7.106 | 0.0588 |
| Neon | 0.2135 | 0.01709 |
| Neopentane[2] | 17.17 | 0.1411 |
| Nitric oxide | 1.358 | 0.02789 |
| Nitrogen | 1.370 | 0.0387 |
| Nitrogen dioxide | 5.354 | 0.04424 |
| Nitrogen trifluoride[2] | 3.58 | 0.0545 |
| Nitrous oxide | 3.832 | 0.04415 |
| Octane[2] | 37.88 | 0.2374 |
| 1-Octanol[2] | 44.71 | 0.2442 |
| Oxygen | 1.382 | 0.03186 |
| Ozone[2] | 3.570 | 0.0487 |
| Pentane | 19.26 | 0.146 |
| 1-Pentanol[2] | 25.88 | 0.1568 |
| Phenol[2] | 22.93 | 0.1177 |
| Phosphine | 4.692 | 0.05156 |
| Propane | 8.779 | 0.08445 |
| 1-Propanol[2] | 16.26 | 0.1079 |
| 2-Propanol[2] | 15.82 | 0.1109 |
| Propene[2] | 8.442 | 0.0824 |
| Pyridine[2] | 19.77 | 0.1137 |
| Pyrrole[2] | 18.82 | 0.1049 |
| Radon | 6.601 | 0.06239 |
| Silane | 4.377 | 0.05786 |
| Silicon tetrafluoride | 4.251 | 0.05571 |
| Sulfur dioxide | 6.803 | 0.05636 |
| Sulfur hexafluoride[2] | 7.857 | 0.0879 |
| Tetrachloromethane[2] | 20.01 | 0.1281 |
| Tetrachlorosilane[2] | 20.96 | 0.1470 |
| Tetrafluoroethylene[2] | 6.954 | 0.0809 |
| Tetrafluoromethane[2] | 4.040 | 0.0633 |
| Tetrafluorosilane[2] | 5.259 | 0.0724 |
| Tetrahydrofuran[2] | 16.39 | 0.1082 |
| Tin tetrachloride | 27.27 | 0.1642 |
| Thiophene[2] | 17.21 | 0.1058 |
| Toluene | 24.38 | 0.1463 |
| 1-1-1-Trichloroethane[2] | 20.15 | 0.1317 |
| Trichloromethane[2] | 15.34 | 0.1019 |
| Trifluoromethane[2] | 5.378 | 0.0640 |
| Trimethylamine[2] | 13.37 | 0.1101 |
| Water | 5.536 | 0.03049 |
| Xenon | 4.250 | 0.05105 |
Units
1 J·m3/mol2 = 1 m6·Pa/mol2 = 10 L2·bar/mol2
1 L2atm/mol2 = 0.101325 J·m3/mol2 = 0.101325 Pa·m6/mol2
1 dm3/mol = 1 L/mol = 1 m3/kmol = 0.001 m3/mol (where kmol is kilomoles = 1000 moles)
References
- ↑ R. C. Weast (1972). Handbook of Chemistry and Physics 53rd Edition. Chemical Rubber Pub.. https://books.google.com/books?id=vyvdSAAACAAJ.
- ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 2.28 2.29 2.30 2.31 2.32 2.33 2.34 2.35 2.36 2.37 2.38 2.39 2.40 2.41 2.42 2.43 Edge, Engineers. "Van der Waals Constants for Gases". https://www.engineersedge.com/thermodynamics/van_der_waals_constants_for_gases_15688.htm.
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