In a voltaic cell, the function played by a salt bridge has to be stated. Concept Introduction: The cell which is used for the production of electricity by the use of a spontaneous process is termed as the voltaic cell. It contains an external and internal circuit. The external circuit allows the movement of electrons from anode to cathode. The internal circuit consists of a salt bridge that allows the flow of ions.

Question

Given a system with an anodic overpotential, the variation of η as a function of current density- at low fields is linear.- at higher fields, it follows Tafel's law.Calculate the range of current densities for which the overpotential has the same value when calculated for both cases (the maximum relative difference will be 5%, compared to the behavior for higher fields).

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Question

Chapter 17, Problem 19QRT

Interpretation Introduction

Interpretation:

In a voltaic cell, the function played by a salt bridge has to be stated.

Concept Introduction:

The cell which is used for the production of electricity by the use of a spontaneous process is termed as the voltaic cell. It contains an external and internal circuit. The external circuit allows the movement of electrons from anode to cathode. The internal circuit consists of a salt bridge that allows the flow of ions.

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Given a system with an anodic overpotential, the variation of η as a function of current density- at low fields is linear.- at higher fields, it follows Tafel's law.Calculate the range of current densities for which the overpotential has the same value when calculated for both cases (the maximum relative difference will be 5%, compared to the behavior for higher fields).

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