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How does fuel cell operate?...

How does fuel cell operate?

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At anode : `2H_(2)(g) +4OH^(-)(aq) to 4H_(2)O +4e^(-)`
At cathode: `O_(2)(g) +2H_(2)O(l) +4e^(-) to 4OH^(-) (aq)`
Net reaction : `2H_(2)(g) +O_(2)(g) to 2H_(2)O(l)`
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ICSE-ELECTROCHEMISTRY-EXERCISE (PART-II Descriptive Questions)
  1. From the given cells : Answer the following : (i) Which cell ...

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  2. How fluoride can be converted to fluorine?

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  3. Galvanization is applying a coating of:

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  4. What is the efficiency of a fuel cell? What is the use of fuel cell ?

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  5. Write electrode reactions taking place in Ni-Cd cell. Is it primary o...

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  6. Name the electrolyte used in dry cell.

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  7. The overall reactions of a hydrogen -oxygen fuel cell is

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  8. Write the name of the electrolyte used in fuel cell.

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  9. Write the name of the electrolyte used in mercury cell.

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  10. Write the names of the electrodes used in fuel cell.

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  11. Give an example of fuel cell.

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  12. How does fuel cell operate?

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  13. State two advantages of H(2)-O(2) fuel cell over ordinary cell.

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  14. Define corrosion. What is the chemical formula of rust?

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  15. How does cathodic protection of iron operate ?

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  16. Which type of metal can be used in cathodic protection of iron agains...

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  17. What would happen if the protective tin coating over an iron bucket i...

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  18. State the factors that influence the value of cell potential of the f...

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  19. Why the cell stops working after some time?

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  20. Rusting of iron is quicker in saline water than in ordinary water. Gi...

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