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

Bonds, How do i know which compounds i should put a roman numeral in

How do i know which compounds i should put a roman numeral in?

Iodoform, chemical physical properties and uses

chemical physical properties and uses

Electrochemical series, Ask question #imum 100 words accepted# Discussion ...

Ask question #imum 100 words accepted# Discussion about electrochemical serirs

Prefix - iupac system of naming organic compounds, Prefix - IUPAC System of...

Prefix - IUPAC System of Naming Organic Compounds There are several groups that are not regarded as functional groups in the IUPAC name of the substance. These are linked as su

Refining of petroleum, Refining of petroleum: Petroleum (crude) extract...

Refining of petroleum: Petroleum (crude) extracted from earth's crust is an intimate mixture of many organic compounds. Crude petroleum needs to be purified and its components

Electrochemical methods of analysis, potential sources of error associated ...

potential sources of error associated with coulometric titrations

Assignment, State 2nd law of thermodynamics in many forms as possible and s...

State 2nd law of thermodynamics in many forms as possible and show that they are identical in figures?

Chemistry, 4 NH3 + 5 O2 --> 4 NO + 6 H2O How many grams of NO are actually ...

4 NH3 + 5 O2 --> 4 NO + 6 H2O How many grams of NO are actually produced when 60.02 grams of ammonia are allowed to react with 96.00 grams of oxygen? ((This is a limiting reactant

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