The following table lists the van der Waals constants (from the van der Waals equation) for a number of common gases and volatile liquids.
Units:
- 1 J·m3/mol2 = 1 m6·Pa/mol2 = 10 L2·bar/mol2
- 1 L2atm/mol2 = 101 325 J·m3/kmol2 = 101 325 Pa·m6/kmol2
- 1 dm3/mol = 1 L/mol = 1 m3/kmol (where kmol is kilomoles = 1000 moles)
Source: Weast. R. C. (Ed.), Handbook of Chemistry and Physics (53rd Edn.), Cleveland:Chemical Rubber Co., 1972.
| a (L2bar/mol2) | b (L/mol) | |
|---|---|---|
| Acetic acid | 17.71 | 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 |
| Argon | 1.355 | 0.0320 |
| Benzene | 18.24 | 0.1154 |
| Bromobenzene | 28.94 | 0.1539 |
| Butane | 14.66 | 0.1226 |
| Carbon dioxide | 3.640 | 0.04267 |
| Carbon disulfide | 11.77 | 0.07685 |
| Carbon monoxide | 1.505 | 0.03985 |
| 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 |
| Diethyl ether | 17.61 | 0.1344 |
| Diethyl sulfide | 19.00 | 0.1214 |
| Dimethyl ether | 8.180 | 0.07246 |
| Dimethyl sulfide | 13.04 | 0.09213 |
| 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 |
| Fluorobenzene | 20.19 | 0.1286 |
| Fluoromethane | 4.692 | 0.05264 |
| Freon | 10.78 | 0.0998 |
| Germanium tetrachloride | 22.90 | 0.1485 |
| Helium | 0.03457 | 0.0237 |
| Hexane | 24.71 | 0.1735 |
| Hydrogen | 0.2476 | 0.02661 |
| Hydrogen bromide | 4.510 | 0.04431 |
| Hydrogen chloride | 3.716 | 0.04081 |
| Hydrogen selenide | 5.338 | 0.04637 |
| Hydrogen sulfide | 4.490 | 0.04287 |
| Iodobenzene | 33.52 | 0.1656 |
| Krypton | 2.349 | 0.03978 |
| Mercury | 8.200 | 0.01696 |
| Methane | 2.283 | 0.04278 |
| Methanol | 9.649 | 0.06702 |
| Neon | 0.2135 | 0.01709 |
| Nitric oxide | 1.358 | 0.02789 |
| Nitrogen | 1.408 | 0.03913 |
| Nitrogen dioxide | 5.354 | 0.04424 |
| Nitrous oxide | 3.832 | 0.04415 |
| Oxygen | 1.378 | 0.03183 |
| Pentane | 19.26 | 0.146 |
| Phosphine | 4.692 | 0.05156 |
| Propane | 8.779 | 0.08445 |
| Silane | 4.377 | 0.05786 |
| Silicon tetrafluoride | 4.251 | 0.05571 |
| Sulfur dioxide | 6.803 | 0.05636 |
| Tin tetrachloride | 27.27 | 0.1642 |
| Toluene | 24.38 | 0.1463 |
| Water | 5.536 | 0.03049 |
| Xenon | 4.250 | 0.05105 |
Famous quotes containing the words van and/or der:
“To call a posit a posit is not to patronize it. A posit can be unavoidable except at the cost of other no less artificial expedients. Everything to which we concede existence is a posit from the standpoint of a description of the theory-building process, and simultaneously real from the standpoint of the theory that is being built.”
—Willard Van Orman Quine (b. 1908)
“Under the lindens on the heather,
There was our double resting-place.”
—Walther Von Der Vogelweide (1170?–1230?)