Abstract
A semiempirical equation is
proposed to describe the effect on the viscosity of a solvent due to the addition
of a solute. This equation is applied to many types of mixtures but not those
for which components are electrolytes or water. The B coefficient at infinite
dilution is B°2 = V·1
+ V·2 /2[ln��
η·2�/In η·1 -
H°/2-H·2
/ 2.45RT ]
where H°2-H·2
is the heat of solution of the liquid solute, V·1 and V·2
the molar volumes and η·2 and η·1
the viscosities of the pure components.
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