Фа́радей тұрақтысы: бір моль электронның электр заряды

Physical constant: Electric charge of one mole of electrons

In physical chemistry, the Faraday constant (symbol F, sometimes stylized as ℱ) is a physical constant defined as the quotient of the total electric charge (q) by the amount (n) of elementary charge carriers in any given sample of matter: it is expressed in units of coulombs per mole (C/mol). As such, it represents the "molar elementary charge", the Faraday constant has an exactly defined value, the product of the elementary charge (e, in coulombs) and the Avogadro constant (NA, in reciprocal moles):
1=F = e × NA

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The Faraday constant can be thought of as the conversion factor between the mole (used in chemistry) and the coulomb (used in physics and in practical electrical measurements), and is therefore of particular use in electrochemistry. Because there are exactly NA = 6.02214076 entities per mole, Until about 1970, the most reliable value of the Faraday constant was determined by a related method of electro dissolving silver metal in perchloric acid.

96.485 kJ per volt–gram equivalent
23.061 kcal per volt–gram equivalent
26.801 A·h/mol

Related to the Faraday constant is the "faraday", a unit of electrical charge. Its use is much less common than of the coulomb, but is sometimes used in electrochemistry. One faraday of charge is the charge of one mole of elementary charges (or of negative one mole of electrons), that is,
1 faraday = F × 1 mol = 9.64853321233100184

Conversely, the Faraday constant F equals 1 faraday per mole. The faraday is not to be confused with the farad, an unrelated unit of capacitance (1=1 farad = 1 coulomb / 1 volt).

The Simpsons episode "Dark Knight Court" has Mr. Burns asking Comic Book Guy how much he wants for his entire comic book inventory. He says "the speed of light expressed as dollars" and Mr. Burns tells Smithers to "just give him Faraday's Constant". The check is written for $96,485.34.