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sir what is an emf value or wht indicates emf value give explanation in detail

sir


what is an emf value or wht indicates emf value


give explanation in detail

Grade:11

1 Answers

vikas askiitian expert
509 Points
11 years ago

The electromotive force (EMF) is the maximum potential difference between two electrodes of a galvanic or voltaic cell. This quantity is related to the tendency for an element, a compound or an ion to acquire (i.e. gain) or release (loss) electrons. For example, the maximum potential between Zn and Cu of a well known cell Zn (s) | Zn2+ (1 M) || Cu2+ (1 M) | Cu (s) has been measured to be 1.100 V. A concentration of 1 M in an ideal solution is defined as the standard condition, and 1.100 V is thus the standard electromotive force, DEo, or standard cell potential for the Zn-Cu galvanic cell.

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