单词	electrode potential
释义	electrode potential The potential difference produced between the electrode and the solution in a half cell. It is not possible to measure this directly since any measurement involves completing the circuit with the electrolyte, thereby introducing another half cell. Standard electrode potentialsE; are defined by measuring the potential relative to a standard hydrogen half cell using 1.0 molar solution at 25°C. The convention is to designate the cell so that the oxidized form is written first. For example, Pt(s) | H2(g)H+(aq) | Zn2+(aq) | Zn(s) The e.m.f. of this cell is -0.76 volt (i.e. the zinc electrode is negative). Thus the standard electrode potential of the Zn2+ | Zn half cell is -0.76 V. Electrode potentials are also called reduction potentials . See also electromotive series
随便看	IP IR iris irradiance irradiation irrational number irreversibility irreversible process isentropic process isobar isobaric spin isocline isodiaphere isodynamic line isoelectronic isogonal line isomerism isomers isometric isomorphism isospin isotherm isothermal process isotone isotonic

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