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

Concentration ore, how is the material extracted from concentrated ore?

how is the material extracted from concentrated ore?

Chemical properties proteins - oxidation, Chemical Properties Proteins - Ox...

Chemical Properties Proteins - Oxidation Oxidation : Proteins are oxidised on putrefaction and burning. The products comprise amines, nitrogen, carbon dioxide and water. The un

Ketone bodies conversion, I wish to convert beta hydroxy butyrate to either...

I wish to convert beta hydroxy butyrate to either acetoacetate/ acetone or any other forms to be detected using some dyes. Kindly help me.

Two similar non-metallic atoms, The electron pair which forms a bond betwee...

The electron pair which forms a bond between two similar non-metallic atoms will be: (1) Dissimilar shared between the two (2) By complete transfer from one atom to other

Assignment, LITHIUM AND BERYLLIUM MARKEDLY DIFFERENT FROM OTHER MEMBERS OF ...

LITHIUM AND BERYLLIUM MARKEDLY DIFFERENT FROM OTHER MEMBERS OF THEIR RESPECTIVE GROUP?.

Group1 element, group1 metal reacts execess of oxygen

group1 metal reacts execess of oxygen

Pressure vs. mole fraction of cyclooctane , Consider a 2-component system o...

Consider a 2-component system of cyclooctane(1) and styrene(2) at 350 °C. Both component can be well described with the Soave-Redlich-Kwong equation of state in the mixed vapor and

Discuss about the term - photolithography, Discuss about the term - Photoli...

Discuss about the term - Photolithography Photolithography (also known as optical lithography), which is one of the kinds of lithography is a process used in micro fabrication

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