Electromotive force . See

The OCV of this cell is the algebraic sum of the Galvani potentials at three interfaces. When each of them is in equilibrium, we find for the overall potential dilference (which in this case we can call an electromotive force or EMF see Section 2.4.2.1), by putting functions (2.06) and (3.21) into an equation of type (2.17) ... 

While this potential cannot he determined for a single electrode, a potential can be derived if the potential of the other electrode in a cell is defined, i.e. the potential of the standard hydrogen electrode (SHE) is arbitrarily taken as 0.(XXX)V. In this way. a potential scale can then be devised for single electrode potentials - see Section 3.2. t The abbreviation emf , in upright script, is often used in other lextNmks as a direct , i.e. non-variable, acronym for the electromotive force. Note, however, that in this present text it is used to represent a variable (cell potential) and is therefore. shown in italic script. 

A quantity (commonly symbolized by V) for the work needed to bring a unit positive charge to that point in space from an infinite distance. Thus, V = dw/dQ where w is the work and Q is the electric charge. The SI unit for electric potential is the volt (V). The electric potential difference, also measured in volts and symbohzed by U, Ay, or Acb, is equal to the difference in potential between two points U = V2 as measured by the work needed to transfer a unit positive charge from one point to the other. See also Electromotive Force... 

The SI unit (symbolized by H) for both self-inductance and mutual inductance. One henry represents the inductance produced when an induced electromotive force of one volt is generated as the inducing current is altered at a rate of one ampere per second. (Hence, one henry is equivalent to one volt-second per ampere or one weber per ampere). See Magnetic Susceptibility Permeability... 

T1C1 (c). The accurate electromotive force data of Gerke1 yield for, T1C1 (c), Qf=48.62. Combination of the data of Thomsen15 on the heat of neutralization of TlOH (aq.) with HC1 (aq.) and the heat of solution of T1C1 (c), yields, for the latter, Qf=48.95. See also Blaszkewska.1... 

ZnBr2 (c). The data on the heat of solution of zinc bromide are Thomsen,15 15.024OO Andre,1 13.85. The use of Thomsen s value gives, for ZnBr2 (c), Qf=78.3. From electromotive force data, Ishikawa and Yoshida1 computed, for ZnBr2 (c), Qf=78.47. See also Czepinski2 and Andrews.8... 

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