Questions/D & F Block/Why does Copper not ...
Standard Electrode Potentials (E°)D & F Block

Why does Copper not replace Hydrogen from acids ( ECu2+/Cu=+0.34VE^\circ_{Cu^{2+}/Cu} = +0.34V )?

Expert Answer

The energy required to sublime and ionize Cu (high ΔaH\Delta_a H and IE) is not balanced by its hydration enthalpy.

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