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

Helium balloon at a pressure, A 10L helium balloon at a pressure of two bar...

A 10L helium balloon at a pressure of two bar at 27C. Some O 2 is now inside in balloon and final volume is made 30L. the pressure also fell to 1 bar at similar temperature. the p

Effect of foaming in preparation of cold and hot souffles, Demonstrate the ...

Demonstrate the effect of foaming in preparation of cold and hot souffles? After undertaking this activity, you will be able to: • learn how to prepare hot and cold souffle,

Concentration of electrons in the conduction band, Concentration of electro...

Concentration of electrons in the conduction band At equilibrium, there is no net current flowing across p-n junction. Concentration of electrons in the conduction band in cond

Cis-2-butene is a symmetrical alkene, cis-2-butene is a symmetrical alkene ...

cis-2-butene is a symmetrical alkene Because cis-2-butene is a symmetrical alkene, it reacts to give the similar product in either oxymercuration- reduction or hydroboration-ox

Benzaldehyde, Preparation of benzaldehyde by etard''s reaction

Preparation of benzaldehyde by etard''s reaction

The number of 2p electrons having spin quantum numbers, The number of 2p  ...

The number of 2p  electrons having spin quantum numbers= -1/2   are: (1) 6        (2) 0        (3) 2        (4) 3 Ans: 3

Structure of covalent bonds, Q. Structure of Covalent Bonds? Ans. ...

Q. Structure of Covalent Bonds? Ans. A covalent bond forms between elements that are near each other in the periodic table While an ionic bond involves an exchange of e

The ground state term symbol for an electronic state, The ground state term...

The ground state term symbol for an electronic state is governed by : (1) Heisenberg's principle  (2) Hund's rule (3) Aufbau principle (4) Pauli exclusion principle

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