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

LANTHANIDE & ACTINIDES, 1. why YbS and YbI2 are semiconducting solids but ...

1. why YbS and YbI2 are semiconducting solids but LaS and LaI2 show metallic character. 2. Why is aqueous solution of Eu2+ thermodynamically less susceptible to oxidation than any

Illustrate Chemical nomenclature, Q. Illustrate Chemical nomenclature? ...

Q. Illustrate Chemical nomenclature? Ans. Chemical nomenclature is the system of names that chemists use to identify compounds precisely. The systematic method of naming c

Equlant mass, find the equlant mass of 2M HCL?

find the equlant mass of 2M HCL?

Molarity, calculate the molarity of sodiun in 0.66ml water

calculate the molarity of sodiun in 0.66ml water

Mucopolysaccharide, descibe mucopolysaccharide and its biological importanc...

descibe mucopolysaccharide and its biological importance

Test of proteins - xanthoproteic test, Test of proteins - Xanthoproteic tes...

Test of proteins - Xanthoproteic test Xanthoproteic test : A few proteins give yellow colour along with concentrated nitric acid (formation of yellow stains on fingers when wor

Biochemistry, what is alternative form of cholesterol formed in plants and ...

what is alternative form of cholesterol formed in plants and prokaryotes ?

Structure of benzene - kekule structure, Structure of benzene - Kekule stru...

Structure of benzene - Kekule structure It has a special structure, which is even though unsaturated even then it usually behave as a saturated compound. (i) Kekule's struct

Nomenclature of spiro compounds, Nomenclature of spiro compounds Compou...

Nomenclature of spiro compounds Compounds where one carbon atom is common to two dissimilar rings are known as spiro compounds. The IUPAC or International Union of Pure and App

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