Q. The change in Gibbs free energy is a path function and it is independent of the state of the system.

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Q. Which of the following formula is used to calculate the Gibbs free energy of an electrochemical reaction?

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Q. What is the change in Gibb’s free energy of a Cu-Zn system with a cell potential of 1.10V?

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Q. Which of the following metal is used as a solid interface for hydrogen gas in the standard hydrogen electrode?

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Q. Which of the following is a cathode and anode respectively in the Ag-Fe system?

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Q. An electrochemical reaction is always a combination of oxidation half-cell and a reduction of half-cell.

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Q. What is the cathodic and anodic reactions respectively of Cu-Ag system?

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Q. Which of the following diagrams shows the stability of metals over a range of pH and potential of a system?

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Q. Which of the following is/are the applications of Pourbaix diagrams?

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Q. Which of the following is/are the limitations of Pourbaix diagrams?

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Q. What is meant by an anode?

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Q. Which of the following is correct regarding Polarization?

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Q. What is the symbol of overvoltage?

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Q. Exchange current density is the current per unit area of either oxidation or reduction process at the equilibrium.

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Q. What is the formula to calculate rate of oxidation or rate of reduction during equilibrium?

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Q. Which of the following is the controlling factor of Activation polarization?

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Q. Which of the following mentioned is/are the types of polarization?

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Q. What is the relationship between reaction rate and overvoltage for activation polarization?

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Q. Which of the following is/are correct regarding concentration polarization?

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Q. What is the formula to determine limiting diffusion current density (iL) of concentration polarization?

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