The contribution λion of interionic forces to the thermal conductivity of dilute electrolyte solutions is calculated on the basis of a model previously proposed and is found to vary as k3 or (concentration)3/2 according to the expression λion=13κ(e2/εT)βzβ2cβDβ, where k is the inverse Debye length, e is the electronic charge, ε is dielectric constant of solvent, z is charge number, cβ is concentration of dissolved ion β in units of number of ions per cubic centimeter, and Dβ is the self‐diffusion coefficient of the ion.

1.
R. J.
Bearman
and
V. S.
Vaidhyanathan
,
J. Chem. Phys.
39
,
3411
(
1963
).
2.
R. J.
Bearman
and
J. G.
Kirkwood
,
J. Chem. Phys.
28
,
136
(
1958
).
3.
Henceforth, we prefix the numbers of equations taken from the reference in Footnote 1 with the Roman numeral I.
4.
H. J. V. Tyrrell, Diffusion and Heat Flow in Liquids (Butterworths Scientific Publications, Ltd., London, 1961), p. 307.
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