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Q4- Electrochemistry question (need to know F = 96485 C mol1) Calculate the equilibrium constant for the disproportionation, Kasp, of Cu(1) to Cu(II) andCu(s), given the following half reactions and

standard reduction potentials.(i) C u^{+}(a q)+e^{-} \rightleftharpoons C u(s) C u^{2+}(a q)+2 e^{-} \rightleftharpoons C u(s) E° = 0.520 V E° = 0.340 V (ii) Given that the temperature variation of the standard reduction potentials above are given by: \text { Cu'/Cu: } \quad E^{0}=0.520+\left(831 \times 10^{-2}\right) \frac{1}{T-298}-\left(230 \times 10^{-3}\right) l n T \mathrm{Cu}^{2+} / \mathrm{Cu}: \quad E^{0}=0.340+\left(789 \times 10^{-2}\right) \frac{1}{\mathrm{~T}-298}-\left(334 \times 10^{-3}\right) \mathrm{ln} T -Calculate the value of Kdisp at 340 K. -Find the entropy associated with the disproportionation reaction at 340 K and comment on youranswer.

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