Question:
The standard electrode potential of M+/M in aqueous solution does not depend on
The standard electrode potential of M+/M in aqueous solution does not depend on
Updated On: Jan 16, 2025
- Sublimation of a solid metal
- Ionisation of a gaseous metal atom
- Ionisation of a solid metal atom
- Hydration of a gaseous metal ion
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The Correct Option is C
Solution and Explanation
The standard electrode potential (E°) of a half-cell reaction is influenced by the following factors:
- Hydration enthalpy: Energy released when a metal ion (M+) is hydrated in water.
- Lattice enthalpy: Energy required to break the ionic lattice of the solid metal salt, allowing the metal ions to dissolve in water.
- Concentration of ions: The activity of the ions in the solution also affects the potential, as described by the Nernst equation.
However, ionisation of a solid metal atom (the process of removing an electron from the solid metal) is not directly involved in determining the standard electrode potential. Instead, the process begins with the metal ion already present in solution (M+) and does not depend on the ionisation energy of the metal in its solid state.
Conclusion:
The standard electrode potential does not depend on the ionisation of a solid metal atom. Therefore, the correct answer is (C).
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