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Transducers
Published in Anton F. P. van Putten, Electronic Measurement Systems, 2019
where E (V) is the voltage difference between a and b, R (8.31 J mol−1 K−1) the universal gas constant, T (K) the absolute temperature, zi the valence of the ion involved, F Faraday’s constant (9.6487 × 104 C mol−1), [C]t,a (m−3) ion density i, in compartment a and [C]t,b (m−3) ion density i, in compartment b. The Faraday constant represents the charge on a mole of electrons. This equation holds for one type of ion. A potential difference is always present when two different conducting media are in contact with each other. This equilibrium is the so-called Donnan equilibrium. In practice the situation can be much more complicated when more than one type of ion is involved. In biocell membranes we may have to deal with ions such as K+, Na+, Cl− and many other types of ion group.
Principles of Electrochemistry
Published in P.J. Gellings, H.J.M. Bouwmeester, Electrochemistry, 2019
where m is the number of chemical equivalents, t the time, F the Faraday constant, and I the current (C · s−1). The value of the Faraday constant is F = 96,485 C/mole equivalent, corresponding with the charge of 1 mole of electrons.
F
Published in Splinter Robert, Illustrated Encyclopedia of Applied and Engineering Physics, 2017
[atomic] Constant linking the electrical work (We; in contrast to mechanical work, Wm = PΔV + VΔP, with P the internal pressure and V the volume of the system) to an applied electrical potential (ΔVe is the maximum difference in the electrical potential resulting from the transferred charges) as, We = −nFaΔVe, with n is the number of charges transferred in the process, and Fa = 96,485 C/mol the Faraday constant.
Research on the effect of catalyst structure on an air-breathing microfluidic fuel cell with crevice
Published in International Journal of Green Energy, 2022
Qiang Ma, Zhijie Duan, Peiyao Zhi, Jicheng Ma, Qing Du, Kui Jiao, Zhi Liu
where and are the mole number and the number of charges in a chemical reaction. is the current density (A m−2), which is calculated by the Bulter–Volmer equation. is the Faraday constant (96485 C mol−1).
Transient simulation and modeling of photovoltaic-PEM water electrolysis
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Seyedmehdi Sharifian, Neda Asasian Kolur, Michael Harasek
where n is the number of moles of electrons transferred per mole of water, and F is Faraday constant (F = 96485 Cmol−1). The thermoneutral voltage () is the theoretical voltage for hydrogen production, related to the total change in enthalpy (ΔH°) for splitting water by the expression: