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Question

What is the difference between emf and galvanic Series?


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Solution

Definition:

EMF: Electromotive force (EMF) = terminal potential difference when there is no current flowing. EMF and terminal potential difference (V) are not the same even though they are both measured in volts. The EMF is the amount of energy (E) provided by the battery for each coulomb of charge (Q) passing through (ϵ).

Galvanic Series: The electrochemical potential and nobility of metals and metal alloys are determined by the galvanic series.

EMF SeriesGalvanic Series
1 .The EMF series is prepared by the salt solution of that element1. It is prepared 3.5% of NaCl solution
2. Only pure metals are used to prepare it2. Both metals and alloys can be used in its preparation
3. It is quantitative3. It is qualitative
4. It assumed the theoretical calculations4. It is used for practical calculations
5. It can works only in certain standard conditions5. It works in any normal condition

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