| 单词 |
Kohlrausch |
| 释义 |
Kohlrausch Physical Chem.|ˈkəʊlraʊʃ|
[The name of Friedrich Wilhelm Kohlrausch (1840–1910), German physicist.]
Kohlrausch's law: that the equivalent electrical conductivity of an electrolyte at infinite dilution may be represented as the sum of two constants, viz. the ionic mobilities of the cation and the anion respectively.
1888Jrnl. Chem. Soc. LIV. 331 Kohlrausch's law that the conductivity of a neutral salt may be represented as a sum of two constants, one of which depends on the nature of the acid and the other on that of the base. 1924H. J. Creighton Princ. & Applications Electrochem. v. 91 This additive relationship..is called Kohlrausch's law or ‘the law of the independent migration of ions’. 1964G. I. Brown Introd. Physical Chem. xxxiii. 369 The immediate usefulness of Kohlrausch's law is that it provides a method for finding the λ∞ [sc. the equivalent conductivity at infinite dilution] value for weak electrolytes from λ∞ measurements on strong electrolytes. 1969R. A. Horne Marine Chem. iii. 117 Kohlrausch's law..of the additivity of conductivities..is valid only in the limiting case. Solutions of finite concentration exhibit an appreciable departure from the law. |
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