9. Consider the reduction of 10-3 mole/cm³ Cu²+ to Cut which has a diffusion limited current density of -9.2 mA/cm², for a diffusion boundary layer thickness of 10-2 cm and an electrolyte diffusivity, D, of Cu²+ of 1 x 10-6 cm²/s. Determine the diffusion overvoltage at a current density of -4.6 mA/cm². a. -1.78 V b. -0.178 V c. -0.0178 V d. -0.0018 V
9. Consider the reduction of 10-3 mole/cm³ Cu²+ to Cut which has a diffusion limited current density of -9.2 mA/cm², for a diffusion boundary layer thickness of 10-2 cm and an electrolyte diffusivity, D, of Cu²+ of 1 x 10-6 cm²/s. Determine the diffusion overvoltage at a current density of -4.6 mA/cm². a. -1.78 V b. -0.178 V c. -0.0178 V d. -0.0018 V
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Solve 9 please
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9. To solve this problem, we can use the following equation:
where:
- η_d is the diffusion overvoltage
- R is the universal gas constant
- T is the temperature in Kelvin
- n is the number of electrons transferred in the electrochemical reaction
- F is Faraday's constant
- j is the current density
- j_lim is the limiting current density
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