Given the standard potential for the following half-cell reaction at 298 K,
Cu+(aq) + e- → Cu(s); E° = 0.52 V
Cu2+(aq) + e- → Cu+(aq); E° = 0.16 V
Calculate the ΔG° (kJ) for the reaction, [2Cu+(aq) → Cu(s) + Cu2+]
A. -34.740
B. -65.720
C. -69.480
D. -131.440
Answer: Option A
This Question Belongs to Engineering Chemistry >> Electrochemistry
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A. $$2.303\frac{{RT}}{F}$$
B. $$ - 2.303\frac{{RT}}{F}$$
C. $$E_{{M^ + }|m}^ \circ + 2.303\frac{{RT}}{F}$$
D. $$E_{{M^ + }|m}^ \circ - 2.303\frac{{RT}}{F}$$
Given that E°(Fe3+, Fe) = -0.4 V and E°(Fe2+, Fe) = -0.44 V, the value of E°(Fe3+, Fe2+) is
A. 0.76V
B. -0.40 V
C. -0.76 V
D. 0.40 V
A. decrease by a factor of 2
B. increase by a factor of 2
C. decrease by a factor of 4
D. increase by a factor of 4
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