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

Nodes, 3p orbitals has how many nodes

3p orbitals has how many nodes

Explain resonance effects, Explain Resonance effects Resonance effects:...

Explain Resonance effects Resonance effects:  The application of the resonance effect for predicting the relative rates of acid-catalyzed ester and amide hydrolyses is exactly

Filling of electron according to aufbau''s principle, According  to Aufbau...

According  to Aufbau's principle, which of the three 4d, 5p  and  5s will be filled with electrons first: (1) 4d (2) 5d (3) 5s (4) 4d and 5s  will be filled simultaneo

Hydrogen and its compounds, A sample of water contains: suspended matter = ...

A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent and

Cement refactories, what is the effect of cement refactory on wear and tear...

what is the effect of cement refactory on wear and tear

Nitrogen containing compounds, Nitrogen Containing Compounds The import...

Nitrogen Containing Compounds The important nitrogen consisting of organic compounds that are alkyl nitrites (RONO), nitro-alkanes (RNO 2 ), amines (- NH 2 ), aromatic nitro co

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,

What are hybrid propellants, State the function along with one example each...

State the function along with one example each of: (i) Antihistamines (ii) Antioxidants   (b) What are hybrid propellants?

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