<P> The following table lists the van der Waals constants (from the van der Waals equation) for a number of common gases and volatile liquids . </P> <P> To convert from L 2 b a r / m o l 2 (\ displaystyle L ^ (2) bar / mol ^ (2)) to L 2 k P a / m o l 2 (\ displaystyle L ^ (2) kPa / mol ^ (2)), multiply by 100 . </P> <Table> <Tr> <Th> </Th> <Th> a (L bar / mol) </Th> <Th> b (L / mol) </Th> </Tr> <Tr> <Td> Acetic acid </Td> <Td> 17.71 </Td> <Td> 0.1065 </Td> </Tr> <Tr> <Td> Acetic anhydride </Td> <Td> 20.158 </Td> <Td> 0.1263 </Td> </Tr> <Tr> <Td> Acetone </Td> <Td> 16.02 </Td> <Td> 0.1124 </Td> </Tr> <Tr> <Td> Acetonitrile </Td> <Td> 17.81 </Td> <Td> 0.1168 </Td> </Tr> <Tr> <Td> Acetylene </Td> <Td> 4.516 </Td> <Td> 0.0522 </Td> </Tr> <Tr> <Td> Ammonia </Td> <Td> 4.225 </Td> <Td> 0.0371 </Td> </Tr> <Tr> <Td> Argon </Td> <Td> 1.355 </Td> <Td> 0.03201 </Td> </Tr> <Tr> <Td> Benzene </Td> <Td> 18.24 </Td> <Td> 0.1154 </Td> </Tr> <Tr> <Td> Bromobenzene </Td> <Td> 28.94 </Td> <Td> 0.1539 </Td> </Tr> <Tr> <Td> Butane </Td> <Td> 14.66 </Td> <Td> 0.1226 </Td> </Tr> <Tr> <Td> Carbon dioxide </Td> <Td> 3.640 </Td> <Td> 0.04267 </Td> </Tr> <Tr> <Td> Carbon disulfide </Td> <Td> 11.77 </Td> <Td> 0.07685 </Td> </Tr> <Tr> <Td> Carbon monoxide </Td> <Td> 1.505 </Td> <Td> 0.03985 </Td> </Tr> <Tr> <Td> Carbon tetrachloride </Td> <Td> 19.7483 </Td> <Td> 0.1281 </Td> </Tr> <Tr> <Td> Chlorine </Td> <Td> 6.579 </Td> <Td> 0.05622 </Td> </Tr> <Tr> <Td> Chlorobenzene </Td> <Td> 25.77 </Td> <Td> 0.1453 </Td> </Tr> <Tr> <Td> Chloroethane </Td> <Td> 11.05 </Td> <Td> 0.08651 </Td> </Tr> <Tr> <Td> Chloromethane </Td> <Td> 7.570 </Td> <Td> 0.06483 </Td> </Tr> <Tr> <Td> Cyanogen </Td> <Td> 7.769 </Td> <Td> 0.06901 </Td> </Tr> <Tr> <Td> Cyclohexane </Td> <Td> 23.11 </Td> <Td> 0.1424 </Td> </Tr> <Tr> <Td> Diethyl ether </Td> <Td> 17.61 </Td> <Td> 0.1344 </Td> </Tr> <Tr> <Td> Diethyl sulfide </Td> <Td> 19.00 </Td> <Td> 0.1214 </Td> </Tr> <Tr> <Td> Dimethyl ether </Td> <Td> 8.180 </Td> <Td> 0.07246 </Td> </Tr> <Tr> <Td> Dimethyl sulfide </Td> <Td> 13.04 </Td> <Td> 0.09213 </Td> </Tr> <Tr> <Td> Ethane </Td> <Td> 5.562 </Td> <Td> 0.0638 </Td> </Tr> <Tr> <Td> Ethanethiol </Td> <Td> 11.39 </Td> <Td> 0.08098 </Td> </Tr> <Tr> <Td> Ethanol </Td> <Td> 12.18 </Td> <Td> 0.08407 </Td> </Tr> <Tr> <Td> Ethyl acetate </Td> <Td> 20.72 </Td> <Td> 0.1412 </Td> </Tr> <Tr> <Td> Ethylamine </Td> <Td> 10.74 </Td> <Td> 0.08409 </Td> </Tr> <Tr> <Td> Fluorobenzene </Td> <Td> 20.19 </Td> <Td> 0.1286 </Td> </Tr> <Tr> <Td> Fluoromethane </Td> <Td> 4.692 </Td> <Td> 0.05264 </Td> </Tr> <Tr> <Td> Freon </Td> <Td> 10.78 </Td> <Td> 0.0998 </Td> </Tr> <Tr> <Td> Germanium tetrachloride </Td> <Td> 22.90 </Td> <Td> 0.1485 </Td> </Tr> <Tr> <Td> Helium </Td> <Td> 0.0346 </Td> <Td> 0.0238 </Td> </Tr> <Tr> <Td> Hexane </Td> <Td> 24.71 </Td> <Td> 0.1735 </Td> </Tr> <Tr> <Td> Hydrogen </Td> <Td> 0.2476 </Td> <Td> 0.02661 </Td> </Tr> <Tr> <Td> Hydrogen bromide </Td> <Td> 4.510 </Td> <Td> 0.04431 </Td> </Tr> <Tr> <Td> Hydrogen chloride </Td> <Td> 3.716 </Td> <Td> 0.04081 </Td> </Tr> <Tr> <Td> Hydrogen selenide </Td> <Td> 5.338 </Td> <Td> 0.04637 </Td> </Tr> <Tr> <Td> Hydrogen sulfide </Td> <Td> 4.490 </Td> <Td> 0.04287 </Td> </Tr> <Tr> <Td> Iodobenzene </Td> <Td> 33.52 </Td> <Td> 0.1656 </Td> </Tr> <Tr> <Td> Krypton </Td> <Td> 2.349 </Td> <Td> 0.03978 </Td> </Tr> <Tr> <Td> Mercury </Td> <Td> 8.200 </Td> <Td> 0.01696 </Td> </Tr> <Tr> <Td> Methane </Td> <Td> 2.283 </Td> <Td> 0.04278 </Td> </Tr> <Tr> <Td> Methanol </Td> <Td> 9.649 </Td> <Td> 0.06702 </Td> </Tr> <Tr> <Td> Neon </Td> <Td> 0.2135 </Td> <Td> 0.01709 </Td> </Tr> <Tr> <Td> Nitric oxide </Td> <Td> 1.358 </Td> <Td> 0.02789 </Td> </Tr> <Tr> <Td> Nitrogen </Td> <Td> 1.370 </Td> <Td> 0.0387 </Td> </Tr> <Tr> <Td> Nitrogen dioxide </Td> <Td> 5.354 </Td> <Td> 0.04424 </Td> </Tr> <Tr> <Td> Nitrous oxide </Td> <Td> 3.832 </Td> <Td> 0.04415 </Td> </Tr> <Tr> <Td> Oxygen </Td> <Td> 1.382 </Td> <Td> 0.03186 </Td> </Tr> <Tr> <Td> Pentane </Td> <Td> 19.26 </Td> <Td> 0.146 </Td> </Tr> <Tr> <Td> Phosphine </Td> <Td> 4.692 </Td> <Td> 0.05156 </Td> </Tr> <Tr> <Td> Propane </Td> <Td> 8.779 </Td> <Td> 0.08445 </Td> </Tr> <Tr> <Td> Radon </Td> <Td> 6.601 </Td> <Td> 0.06239 </Td> </Tr> <Tr> <Td> Silane </Td> <Td> 4.377 </Td> <Td> 0.05786 </Td> </Tr> <Tr> <Td> Silicon tetrafluoride </Td> <Td> 4.251 </Td> <Td> 0.05571 </Td> </Tr> <Tr> <Td> Sulfur dioxide </Td> <Td> 6.803 </Td> <Td> 0.05636 </Td> </Tr> <Tr> <Td> Tin tetrachloride </Td> <Td> 27.27 </Td> <Td> 0.1642 </Td> </Tr> <Tr> <Td> Toluene </Td> <Td> 24.38 </Td> <Td> 0.1463 </Td> </Tr> <Tr> <Td> Water </Td> <Td> 5.536 </Td> <Td> 0.03049 </Td> </Tr> <Tr> <Td> Xenon </Td> <Td> 4.250 </Td> <Td> 0.05105 </Td> </Tr> </Table> <Tr> <Th> </Th> <Th> a (L bar / mol) </Th> <Th> b (L / mol) </Th> </Tr>

Units of van der waals constants a and b