The $E^{e}$ $(M^{2 +} / M)$ value for copperis positive (+0.34V). What is possibly the reason for this ?

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Solution

Copper has a high atomization energy $Δ_{a} H^{Θ}$ and Low hydration energy $Δ_{h y d} H^{Θ}$ . Due to which $E^{0}$ value is positive.

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