Define standard reduction potential, Chemistry

Assignment Help:

Q. Define standard reduction potential ?

Ans. The standard reduction potential, Eo

As we have seen in the example of a chemical cell in the previous section, the redox reaction "drives" electrons through the circuit. Volts, or voltage, is a measure of the potential for a substance to produce electricity. The tendency for a substance to be reduced is measured by its standard reduction potential, Eo. The more positive the standard reduction potential, the more likely the substance will undergo a reduction reaction.

The following table lists the standard reduction potentials of the commonly used half-cells:

135_reduction potential.gif

By definition, 2H+ + 2e- -> H2 is the standard reference cell. The value of its reduction potential Eois zero. All other reduction half-reactions are measured in reference to this value.

In general, the potential of a chemical cell to produce electricity is related to the difference of the half-cell potentials for each of the substances that are involved in the reduction and oxidation half-cells.


Related Discussions:- Define standard reduction potential

Hubles Test, Explain in brief hubles test for any test splution

Explain in brief hubles test for any test splution

Show the halides of aluminium, Q. Show the Halides of Aluminium? All th...

Q. Show the Halides of Aluminium? All the four trihalides of aluminium, i.e. AIF 3 , AICI 3 ,, AlBr 3 , and AlI 3 , are known. AIF 3 ,  is made by treating Al 2 0 3 with HF ga

Synthetic rubber, Short note on synthetic rubber. S ol. Synthetic rubbe...

Short note on synthetic rubber. S ol. Synthetic rubber: main types of synthetic rubbers: 1.                 Styrene rubber: Buna-S; Bu-Butadiene; Na=sodium; = Styrene

#electrochemistry, The emf of the cell Cd/CdSO4(0.0093M)//CdSO4/Cd is 0.086...

The emf of the cell Cd/CdSO4(0.0093M)//CdSO4/Cd is 0.086V at 25°C find the value of X solution

Concentration, What does concentration exactly mean?

What does concentration exactly mean?

Prefix - iupac system of naming organic compounds, Prefix - IUPAC System of...

Prefix - IUPAC System of Naming Organic Compounds There are several groups that are not regarded as functional groups in the IUPAC name of the substance. These are linked as su

Fractional crystallisation- purification of organic compound, Fractional cr...

Fractional crystallisation- Purification of organic compound The method of separation of diverse components of a mixture by repeated crystallisations is termed as fractional cr

The formation of energy bonds in solids are in accordance, The formation of...

The formation of energy bonds in solids are in accordance with: (1) Heisenberg's uncertainty principle   (2)Bohr's theory (3 )Ohm's law (4) Rutherford's atomic model

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd