Paragraph: For an electrode reaction written as aligned & M ^ n + + ne ⁻ M & E _ red = E _ red ^ - RT nF 1 [ M ^ n+ ] (Nernst equation) & = E _ red ^ - 0.0591 n 1 [ M ^ n+ ] at 298 ~K aligned For the cell reaction, a A+b B x X+y Y aligned &

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Paragraph: For an electrode reaction written as aligned & M ^ n + + ne ⁻ M & E _ red = E _ red ^ - RT nF 1 [ M ^ n+ ] (Nernst equation) & = E _ red ^ - 0.0591 n 1 [ M ^ n+ ] at 298 ~K aligned For the cell reaction, a A+b B x X+y Y aligned & E _ cell = E _ cell ^o- RT nF [ X ]^ x [ Y ]^ y [ A ]^ a [ B ]^ b & = E _ cell ^ - 0.0591 n [ X ]^ x [ Y ]^ y [ A ]^ a [ B ]^ b at 298 ~K aligned For pure solids, liquids or gases

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Correct answer: B. 10^ 0.032 0.025

aligned & Zn + Fe ⁺² Fe + Zn ⁺² & aligned E = & E ^ - 0.0591 n K _ eq aligned & Given, E =0.2905 & 0.2905= E ^ - 0.0591 2 0.01 0.001 & aligned & 0.02905+0.0295 10 & =0.2905+0.0295 & =0.32 & E ^ = 0.0591 2 K _ eq & 0.32= 0.0591 2 K _ eq & K _ eq =10^ 0.32 0.0295 aligned aligned

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