1. For an electrochemical copper reduction reaction at 25°C and 101 kPa, calculate (a) the Gibbs freeenergy change AG° as the driving force, (b) the equilibrium constant K and (c) the copper ionconcentration [Cu2+] in g/L. Consider the cathodic reaction only and assume [Cu]=1mol/L.2. The conductivity of Ag is about 61.4MS/m. What is the resistance of a 2m length Ag wire having 1mmdiameter?

The electrochemical cell is composed of cathode and anode. The reaction at cathode of the cell is…

1. For an electrochemical copper reduction reaction at 25°C and 101 kPa, calculate (a) the Gibbs free energy change AG° as the driving force, (b) the equilibrium constant K and (c) the copper ion concentration [Cu²+] in g/L. Consider the cathodic reaction only and assume [Cu]=1mol/L.

1. For an electrochemical copper reduction reaction at 25°C and 101 kPa, calculate (a) the Gibbs free energy change AG° as the driving force, (b) the equilibrium constant K and (c) the copper ion concentration [Cu²+] in g/L. Consider the cathodic reaction only and assume [Cu]=1mol/L.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter22: Bulk Electrolysis: Electrogravimetry And Coulometry

Section: Chapter Questions

Problem 22.28QAP

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Concept explainers

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.

Question

1. For an electrochemical copper reduction reaction at 25°C and 101 kPa, calculate (a) the Gibbs free
energy change AG° as the driving force, (b) the equilibrium constant K and (c) the copper ion
concentration [Cu2+] in g/L. Consider the cathodic reaction only and assume [Cu]=1mol/L.
2. The conductivity of Ag is about 61.4MS/m. What is the resistance of a 2m length Ag wire having 1mm
diameter?

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