Electrode processes

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The reactions accompanied by a change of atom oxidation number of elements are called oxidation-reduction reactions.

The reactions accompanied by a change of atom oxidation number of

elements are called
oxidation-reduction reactions.
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The particles which accept electrons are called oxidizers. The particles which donate electrons are called reducers.

The particles which accept electrons are called oxidizers.
The particles which

donate electrons are called reducers.
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Fе2+ + Се4+ ↔ Fе3+ + Се3+ Oxidized and reduced forms

Fе2+ + Се4+ ↔ Fе3+ + Се3+
Oxidized and reduced forms of

one substance involved in the half-reaction compose redox couple:
Fе2+ – ē ↔ Fе3+
Се4+ + ē ↔ Се3+
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Electrode or redox potential (E) is the quantitative measure of redox power of different redox reactions.

Electrode or redox potential (E) is the quantitative measure of redox

power of different redox reactions.
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A conductor (metal) immersed into a solution of its salt is

A conductor (metal) immersed into a solution of its salt is

called
electrode
Potential difference arising on the electrode-solution interfase is called electrode potential
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Potential difference between electrodes is known as electromotive force (EMF) EMF = Ecathode - Eanode

Potential difference between electrodes is known as electromotive force (EMF)
EMF =

Ecathode - Eanode
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EMF of a chemical reaction is equal to difference between redox

EMF of a chemical reaction is equal to difference between redox

potentials of
a redox couple
EMF = Eox - Ered
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The potentials difference that occurs in the tissues of living organisms is called bioelectric potential.

The potentials difference that occurs in the tissues of living organisms

is called bioelectric potential.