inet = lo [e-aFn/RT – ell–a)Fn/RT 1 * (1-) to = FAkºCo CR یه 2

[answerhappygod]

1 (46.71 KiB) Viewed 42 times

2 (56.4 KiB) Viewed 42 times

As can be seen from <Equation 4-12> and <Equation
4-15> , the magnitude of the current is determined by at
least three variables: (1) k0 (independent of voltage),
which is a unique characteristic of an electrochemical system
composed of an electrode/electrochemical reaction, (2) area (A),
and (3) voltage (E).
Hydrogen generation and oxidation (2H++2eH2)
current are very small in the mercury (Hg) electrode but very large
in the platinum (Pt) electrode. Which of the three variables above
shows a difference? In what case is it close to electrochemical
reversibility? When changing the voltage of the mercury and
platinum electrodes in the negative and positive directions, trace
the magnitude of the hydrogen generation/hydrogen oxidation
current.
inet = lo [e-aFn/RT – ell–a)Fn/RT 1
* (1-) to = FAkºCo CR یه 2