Physical Chemistry Third Edition

A Tables of Numerical Data 1229

Table A.16 Thermal Conductivities

Substance Temperature/◦C κ/Js−^1 m−^1 K−^1

Gases

Air, 1 atm 20 0. 02353

Argon, 1 atm 20 0. 01625

Carbon dioxide, 1 atm 20 0. 01409

Helium, 1 atm 20 0. 13954

Liquids

Benzene 22. 50. 1582

Carbon tetrachloride 20 0. 1033

Octane 30 0. 1451

Water 27 0. 6092

Solids

Aluminum 25 237

Iron 25 80. 4

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

Press, Boca Raton, FL, 1983, pp. E2–E15.

Table A.17 Diffusion Coefficients for Dilute Solutes in Liquid Solu-

tions

Solute Solvent Temperature/◦C D× 109 /m^2 s−^1

Acetylene water 0 1. 10

α-alanine water 25 0. 91

Carbon dioxide n-pentanol 25 1. 91

Ethane n-heptane 30 5. 60

Glucose water 25 0. 673

Glycine water 25 1. 064

Potassium chloride water 25 1. 917

Sodium chloride water 25 1. 545

Sucrose water 25 0. 5226

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

Raton, FL, 1983, pp. F45–F46.