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

Surface tension, surface tension assingnment with diagram

surface tension assingnment with diagram

Quantum mechanical model of the atom, The frequency of strong yellow light ...

The frequency of strong yellow light in the spectrum of sodium is 5.09•10*14s calculated the wavelength of light

Spirocompounds, Ask question #Minimum 50 words accepted#

Ask question #Minimum 50 words accepted#

Salt solution, A tank having 100 kg of a 60% brine (60% salt) is ?lled with...

A tank having 100 kg of a 60% brine (60% salt) is ?lled with a 10% salt solution at the rate of 10 kg/min and 78°F.Solution is detached from the tank at the rate of 15 kg/min.  Fin

Uses of resorcinol, Uses of Resorcinol (a) Resorcinol is used as antise...

Uses of Resorcinol (a) Resorcinol is used as antiseptic and for creating dyes. (b) Resorcinol is also used in the medicine of eczema. 2, 4, 6-trinitroresorcinol is required

Describe oxosalts, Q. Describe Oxosalts? In these minerals, metals are ...

Q. Describe Oxosalts? In these minerals, metals are present as their oxosalts, such as carbonates, sulphates, nitrates, phosphates, borates and silicates. Some important minera

D blockelements, Magnetic property of d block elements

Magnetic property of d block elements

How to remember valency of elements, Till 20elememts write the no of electr...

Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8

Explain about the intrinsic breakdown, Explain about the Intrinsic breakdow...

Explain about the Intrinsic breakdown: It's because of the excitation of electrons into the conduction band across  the  energy  gap  under  the  condition  of  excessive  volt

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