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

Alkanes have single bond, Alkanes have single bond, but why are they less r...

Alkanes have single bond, but why are they less reactive as compared to alkenes or alkynes which have respectively double or triple bonds ? Alkanes have only single sigma bond w

Composition of rna vary from that of dna, How does  the composition of RNA ...

How does  the composition of RNA vary from that of DNA, and how does that affect the chemical stability of the molecule?

The electronic configuration of silver atom in ground state, The electronic...

The electronic configuration of silver atom in ground state is: (1) [ Kr]3 d 10 4 s 1                             (2) [Xe]4f 14 5d 10 6s 1       (3) [ Kr]4d 10 5 s

Homolysis bond fission or homolytic, Homolysis bond fission or Homolytic ...

Homolysis bond fission or Homolytic (i) In homolysis bond, the covalent bond is broken in such a way that every resulting species gets its own electron. This is apt to the crea

Atomic structure, the value of charge on the oil droplets experimentally ob...

the value of charge on the oil droplets experimentally observed were -1.6*10-19 and -4*10-19coulomb. the value of the electronic charge,indicated by these results is

Photon absorption for ir spectroscopy, Photon absorption for IR spectroscop...

Photon absorption for IR spectroscopy                                                                  Photon absorption for IR spectroscopy

Equivalent weight, how to caculate n- factor in equivalent weight

how to caculate n- factor in equivalent weight

Dithizone-chelating agent, the reaction equations for the dissociation of d...

the reaction equations for the dissociation of dithzone into chelate anions and the formation of metal-dithizone chelates

One of the following compound is ionic, Which one of the following compound...

Which one of the following compound is ionic: (1) KCl                             (2) CH 4               (3) Diamond              (4) H 2 Ans: KCl

Preparation of standard solution and titrations, How are standard solutions...

How are standard solutions and titrations prepared in industry compared to school

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