Physical Chemistry Third Edition

1228 A Tables of Numerical Data

Table A.14 Parameters for the Lennard–Jones Potential

Substance σ× 1010 /m(ε/kB)/K

Argon 3.40 120

Carbon dioxide 4.5 189

Helium 2.56 10. 22

Krypton 3.60 58. 8

Neon 2.75 35

Nitrogen 3.7 95

Oxygen 3.5 118

Xenon 4.1 87

From J. O. Hirschfelder, C. F. Curtiss, and R. B. Bird,Molecular Theory of

Gases and Liquids, Wiley, New York, 1954, p. 1110ff.

Table A.15 Effective Hard-Sphere Diameters

Substance Temperature/K d× 1010 /m

Ammonia 293 4. 38

Argon 273 3. 65

293 3. 61

373 3. 48

473 3. 37

Carbon dioxide 293 4. 53

Carbon monoxide 295 3. 72

Chlorine 293 5. 39

Ethane 293 5. 26

Ethylene 293 4. 90

Helium 293 2. 17

Hydrogen 294 2. 72

Iodine 397 6. 35

Methane 293 4. 10

Nitrogen 301 3. 71

Oxygen 292 3. 58

Water 373 4. 18

Xenon 293 4. 81

From R. C. Weast, ed.,Handbook of Chemistry and Physics, 64th ed., CRC

Press, Boca Raton, FL, 1983, p. F43ff.