Kohlrausch, Friedrich

It must be noted here that a decrease of the value of a is not the sole reason for a decrease in conductivity with increasing concentration. In 1900, Friedrich Kohlrausch found that in binary solutions of strong electrolytes for which a = 1 (i.e., does not change with the concentration), the conductivity is a linearly function of the value of... 

A century ago, careful measurements of the conductivity of water were made by Friedrich Kohlrausch and his students. To remove impurities, they found it necessary to distill the water 42 consecutive times under vacuum to reduce conductivity to a limiting value. 

The winter of 1886-7 was approaching Arrhenius had spent almost a year with Ostwald. Friedrich Kohlrausch at Wurtz-burg had been busy experimenting on the conductivity of solutions and had discovered that all the ions of the same element,... 

The Stockholm Academy of Sciences awarded Arrhenius a traveling scholarship in 1886. As a result, he worked with Ostwald in Riga as well as with physicists Friedrich Kohlrausch at the University of Wurzburg and Ludwig Boltzmann at the University of Graz, and with chemist Jacobus van t Hoff at the University of Amsterdam. In 1889 he formulated his rate equation, which is used for many chemical transformations and processes, in which the rate is exponentially related to temperature. This formulation is known as the Arrhenius equation. ... 

W. Wien, Obituary Friedrich Kohlrausch. Annalen derPhysik, 336 3 (1910), 449—454. 

Only in strongly diluted solutirms where there are no noticeable interactions between the ions do the individual ions move in the electric field independently of the type of counter-irMis. This law of independent migration of ions was found by the German physicist Friedrich Kohlrausch in the nineteenth century. 

We will now consider strong electrolytes which can easily be investigated experimentally. Around 1900, the German physicist Friedrich Kohlrausch empirically found the following relation between molar conductivity A, concentration c, and limiting molar conductivity A ... 

Kohlrausch s law If a salt is dissolved in water, the conductivity of the (dilute) solution is the sum of two values - one depending on the positive ions and the other on the negative ions. The law, which depends on the independent migration of ions, was deduced experimentally by the German chemist Friedrich Kohlrausch (1840-1910). 

Friedrich Wilhelm Georg Kohlrausch (1840—1910), German physicist. Author of Lehrbuch der Praktischen... 

Ann. Phys., 1847, Ixxii, 353-405 Rudolph Hermann Arndt Kohlrausch (Gottingen, 6 November 1809-Erlangen, 9 March 1858), father of Friedrich Kohlrausch, teacher of physics in various institutions and finally (1857) professor in Erlangen Poggendorff, (i), i, 1299. 

Werner sought to provide evidence for his theory chiefly through studies on conductivity and isomerism. Friedrich Kohlrausch had shown that molecular conductivity (p) provides a method of determining the number of ions in a soluble compound. In 1893 Werner and Arturo Miolati started to measure the molecular conductivities of a number of cobalt complexes. Some of their results, along with the rival Werner and J0rgensen formulae for the compounds, are listed in Table 12.1. 

The introduction of a.c. methodology by Friedrich Kohlrausch (18 0-1910) in 1869 and his extensive work in the field of electrolytic conductance led to the high-precision measurements by Washburn and others around 1920 (11). 

Masson s conclusion agreed with that obtained from theoretical reasoning by Friedrich Kohlrausch two years earlier (21). Kohlrausch had derived a "beharrliche Function ... 

Tn the aut.umn of 1886, Nernst moved to Wdrzburg to work on electrolyte conductivity with Friedrich Kohlrausch that same... 

Kohlrausch s laws are named for Friedrich Wilhelm Georg Kohlrausch, 1840-1910, who was probably the greatest experimental physicist of the 19th century. He studied many electric and magnetic phenomena as well as electrolyte conduction and the autolonizatlon of water. 

The German physicist Friedrich Kohlrausch found that for dilute solutions of strong electrolytes, extrapolation of measured values of A to infinite dilution was approximately linear when done against the... 

Friedrich Wilhelm Georg Kohlrausch (1840-1910) was a German physicist who investigated the conductive properties of electrolytes and contributed to the knowledge of their behavior. 

While A should not depend on concentration as strongly as k does, the molar conductivity decreases as the concentration increases. Friedrich Wilhelm Georg Kohlrausch, in 1900, experimentally found that for dilute strong electrolytes there is a linear dependence of A from... 

---