CBSE Class 12-science Answered
what is electrode potential? explain it with example.
Asked by shivam singh solanki | 06 Jul, 2013, 01:24: PM
Expert Answer
The difference between the charge on an electrode and the charge in the solution is known as electrode potential.
The standard electrode potential of a metal is the potantial acquired when the metal is immersed in a 1 mol dm-3solution of its ions at a temperature of 25oC.
To calculate the standard cell potential, from the standard electrode potentials we do the following:
E cell = E right hand half cell - E left hand half cell.
The left-hand half cell is conventionally the oxidising half-cell.
Example: Electrode potential
| Cr3+(aq) | +3e- | -----> | Cr(s) | E = -0.74 |
Answered by | 07 Jul, 2013, 10:30: AM
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