Standard Reduction Potential

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Standard Reduction Potential

Postby Justin_Ching_3I » Sun Feb 05, 2017 7:07 pm

Why is the standard reduction potential always the same even after balancing half reactions?

Hao 1I
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Re: Standard Reduction Potential

Postby Hao 1I » Sun Feb 05, 2017 7:37 pm

The standard reduction potential is an intensive property. Think of this mathematically. If you rearrange the equation to E = -(delta G) / nF, the value of G changes as n changes too so E stays the same.

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Re: Standard Reduction Potential

Postby AHoang_1I » Sun Feb 05, 2017 8:29 pm

Why is SRP an intensive property? What does it mean to be an intensive property/ what are some other examples of intensive properties in electrochemistry?

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Re: Standard Reduction Potential

Postby Azeel_Mohammed_1C » Sun Feb 05, 2017 8:38 pm

SRP is an intensive property because, "the number of electrons lost must equal the number gained, the half-reactions must be multiplied by integers as necessary to achieve the balanced equation. It does not depend on how many times the reaction occurs, the potential is not multiplied by the integer required to balance the cell reaction. Cell voltage is an intensive property and does not vary with the size of the electrode or number of electrons transferred, only with the potential difference among metals."

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