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Questions and Answers
What is the equation for the equilibrium deposition potential?
What is the equation for the equilibrium deposition potential?
- $e_{eqm} = e_o - \ln \left(\frac{Z F}{C}\right)$
- $e_{eqm} = e_o - \ln \left(\frac{C}{Z F}\right)$
- $e_{eqm} = e_o + \ln \left(\frac{C}{Z F}\right)$ (correct)
- $e_{eqm} = e_o + \ln \left(\frac{Z F}{C}\right)$
What is the extra voltage known as when the equilibrium deposition potential is not sufficient to start the reaction?
What is the extra voltage known as when the equilibrium deposition potential is not sufficient to start the reaction?
- Electrochemical polarization
- Activation or chemical polarization (correct)
- Concentration polarization
- Redox polarization
What factors affect activation polarization ($\eta_a$)?
What factors affect activation polarization ($\eta_a$)?
- Current density (correct)
- Temperature
- Electrode material
- All of the above
What is the equation for activation polarization ($\eta_a$) in terms of current density ($i$)?
What is the equation for activation polarization ($\eta_a$) in terms of current density ($i$)?
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In which reactions does activation polarization (slow) appear more pronounced?
In which reactions does activation polarization (slow) appear more pronounced?
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