Faraday s number

Chemical potential of the electrons in the metal Electrochemical potential Faraday s number (96 485 C/mol)... 

The properties of these positive rays can be determined by methods analogous to those used for the cathode rays. From tlu . deflection experiments values are found for the specific charge of tlies( . piirticles, of the order of magnitude of Faraday s number F. In tlu sc rays, therefore, we are concerned with singly or multiply chargiid a.toms or molecules (ions) and in fact the same values are found for tlie ratios of the masses of these ions, as chemists have found l)y (vlicmical methods. 

In the above expression, z,e is the charge of the ion (with the sign taken into account) e is the elementary charge NA is Avogadro s number the eNA product is Faraday s number. At low concentrations of ions (number of ions per m3), np the equilibrium conditions where the electrochemical potential is constant within the entire system can be written as... 

Polar components are associated between themselves. Their independent migration relative one another disrupts electric neutrality of the solution, and therewith creates some electric potential (Figure 3.24). In an effort to eliminate it, each polar component performs some useful work equal to z.WAE. Here, z.is ion charge, is Faraday s number (96.55 kJ-V" mole 0 and AE is electric potential (V) of the solution. In this connection the force in equation (3.9), which compels component i to migrate, has two addends ... 

F Faraday s number G (jibbs energy (J) g gravitational acceleration (m/s )... 

Arrhenius activation energy Electric field Faraday s number... 

The strain-to-charge ratio is in fact more preeisely the strain-to-charge density ratio and has units of m /C. Charge density and ion eoneentration in moles per liter are simply related through Faraday s number, F (for monovalent ions, p = lOOOFC when concentration is in moles per liter, and other units are mAs). 

Some films are termed "passive," for stainless steels or aluminum alloys, for instance. These films can play an important role in environment-sensitive crack initiation and fracture. Under thermodynamic equilibrium conditions, the film stability may be inferred from E =/(pH) diagrams, where E is the electrical potential related to the chemical free energy G by G = -nEF, and F is Faraday s number. At equilibrium, one can define the electrode potential (related to AG) and the current density I (I e here AG is the activation energy of dissolution). 

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