Diluted solution

Diluted solution is a solution with a low solute content. Note that the diluted solution is not always unsaturated - for example, a saturated 0.0000134M solution of practically insoluble silver chloride is very diluted. The boundary between dilute and concentrated solutions is very arbitrary.

In physical chemistry, an important role is played by the concept of an extremely dilute solution , that is, a solution in which the molecules of the dissolved substance do not interact, and after the addition of an infinitesimal amount of the dissolved substance, interaction occurs. In such a solution, the solvent obeys the laws of behavior of ideal solutions , and the dissolved substance does not obey. In particular, Raoul’s law does not apply to a dissolved substance in an extremely dilute solution, and the vapor pressure above the solution can be described by Henry’s law :

p_{2}=K_{2}x_{2}

{\ displaystyle p_ {2} = K_ {2} x_ {2}}

{\ displaystyle p_ {2} = K_ {2} x_ {2}}

Where $p_{2}$ ${\ displaystyle p_ {2}}$ $p_ {2}$ - vapor pressure of the solute, $x_{2}$ ${\ displaystyle x_ {2}}$ $x_ {2}$ - molar fraction of it, $K_{2}$ ${\ displaystyle K_ {2}}$ $K_ {2}$ - Henry's constant.

Literature

Stromberg A. G., Semchenko D. P. Physical chemistry: Textbook. for chemical technol. specialist. Universities / Ed. A. G. Stromberg. - 2nd ed., Revised. and add. - M.: Higher. school., 1988 .-- 496 p.
Krasnov K.S., Vorobiev N.K., Godnev I.N. et al. Physical Chemistry. In 2 book Prince 1. The structure of the substance. Thermodynamics: Textbook. for universities. - 2nd ed., Revised. and add. - M.: Higher. school., 1995 .-- 512 s. - ISBN 5-06-002913-1

Diluted solution

Literature

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