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NEET
Exam
NEET
Subject
Chemistry
Chapter
Electrochemistry

NEET · Chemistry · Electrochemistry

At what conditions is the emf of the cell equal to the standard...

At what conditions is the emf of the cell equal to the standard electrode potential of a given half-cell?

Options

  1. AWhen the cell temperature is 298 K.
  2. BWhen the cell concentration is unity.
  3. CWhen the cell pressure is one bar.
  4. DWhen the cell potential is zero.

Correct answer

B. When the cell concentration is unity.

Step-by-step solution

If the concentrations of the oxidized and reduced forms of the species in the right-hand half-cell are unity, then the cell potential is equal to the standard electrode potential of the given half-cell.
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