Which equation gives relation between concentration of ions in solution , electrode potential (E) and standard electrode potential `(E^@?)`

Options

A. Faraday's equation
B. Nernst's equation
C. Ohm's equation
D. Kohlrausch's equation

Answer

To solve the question regarding the equation that relates the concentration of ions in solution, electrode potential (E), and standard electrode potential (E°), we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Electrode Potential (E)**: This is the potential of an electrode in a given solution.
- **Standard Electrode Potential (E°)**: This is the potential of an electrode under standard conditions (1 M concentration, 1 atm pressure, and 25°C).
- **Concentration of Ions**: This refers to the amount of ions present in the solution, which can affect the electrode potential.

2. **Identifying the Relevant Equation**:
- The relationship between the electrode potential (E), standard electrode potential (E°), and the concentration of ions is described by the **Nernst Equation**.

3. **Writing the Nernst Equation**:
- The Nernst Equation is given as:
\[ E = E° - \frac{0.0592}{n} \log Q \]
- Here, \( n \) is the number of moles of electrons transferred in the half-reaction, and \( Q \) is the reaction quotient, which is related to the concentrations of the reactants and products.

4. **Conclusion**:
- From the above steps, we conclude that the Nernst equation provides the required relationship between the concentration of ions in solution, electrode potential (E), and standard electrode potential (E°). Therefore, the correct answer is the Nernst equation.

### Final Answer:
The equation that gives the relation between concentration of ions in solution, electrode potential (E), and standard electrode potential (E°) is the **Nernst Equation**.

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