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What is meant by standard electrode pote...

What is meant by standard electrode potential ? How does it originate ?

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The potential associated. with each electrode is known as electrode potential. If the concentration of each species taking part in the electrode reaction is unity (if any gås appears in the electrode reaction, it is confined to 1 atmospheric pressure) and further the reaction is carried out at 298 K, then the potential of each electrode is said to be the standard electrode potential. By convention, the standard electrode potential of hydrogen electrode is 0:0 volt. The electrode potential value for each electrode process is a measure, of relative tendency of the active species in the process to remain in the oxidized / reduced form. A negative E^@ means that the redox couple is a stronger reducing agent than the H^(+)//H_2 couple. A positive E mears that the redox couple is a weaker reducing agent than. the H^(+)//H couple. The metal with greater positive value of standard reduction potentlal forms the oxide of greater thermal stability: Which of the following oxides will be themally most stable?

The potential associated. with each electrode is known as electrode potential. If the concentration of each species taking part in the electrode reaction is unity (if any gås appears in the electrode reaction, it is confined to 1 atmospheric pressure) and further the reaction is carried out at 298 K, then the potential of each electrode is said to be the standard electrode potential. By convention, the standard electrode potential of hydrogen electrode is 0:0 volt. The electrode potential value for each electrode process is a measure, of relative tendency of the active species in the process to remain in the oxidized / reduced form. A negative E^@ means that the redox couple is a stronger reducing agent than the H^(+)//H_2 couple. A positive E mears that the redox couple is a weaker reducing agent than. the H^(+)//H couple. The metal with greater positive value of standard reduction potentlal forms the oxide of greater thermal stability: Which of the following metals will not displace hydrogen from water?

The potential associated. with each electrode is known as electrode potential. If the concentration of each species taking part in the electrode reaction is unity (if any gås appears in the electrode reaction, it is confined to 1 atmospheric pressure) and further the reaction is carried out at 298 K, then the potential of each electrode is said to be the standard electrode potential. By convention, the standard electrode potential of hydrogen electrode is 0:0 volt. The electrode potential value for each electrode process is a measure, of relative tendency of the active species in the process to remain in the oxidized / reduced form. A negative E^@ means that the redox couple is a stronger reducing agent than the H^(+)//H_2 couple. A positive E mears that the redox couple is a weaker reducing agent than. the H^(+)//H couple. The metal with greater positive value of standard reduction potentlal forms the oxide of greater thermal stability: Given the standard reduction potentials. E_(K^(+)//K)^(@)=-2.93V, E_(Ag^(+)//Ag)^(@)=+0.80V, E_(Hg^(+)//Hg)^(@)=0.79V E_(Mg^(+)//Mg)^(@)=-2.37V, E_(Cr^(3+)//Cr)^(@)=-0.74V The correct increasing order of reducing power is:

ICSE-ELECTROCHEMISTRY-EXERCISE (PART-II Descriptive Questions)(SHORT ANSWER QUESTIONS)
  1. Write three differences between electrochemical cell and electrolytic...

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  2. Write the cell reaction and cell notation for the Daniell cell. How c...

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  3. What is meant by standard electrode potential ? How does it originate ...

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  4. What is standard hydrogen electrode ? Give the reaction that occurs a...

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  5. Define electrochemical series. How it helps to predict whether a give...

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  6. Write three differences between electrochemical cell and electrolytic...

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  7. Why electrochemical cell stops working after some time?

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  8. Derive an expression relating standard e.m.f. of the cell with the eq...

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  9. How Nernst equation can be applied in the calculation of equilibrium ...

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  10. Explain the terms conductivity and resistivity.

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  11. State Faraday's first law of electrolysis.

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  12. State Faraday's second law of electrolysis. How is the law helpful in ...

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  13. Explain the term cell constant.

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  14. Define the following terms : (i) Molar conductivity (wedge(m)) (ii)...

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  15. How can Kohlrausch's law of independent migration can be applied for ...

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  16. The molar conductivity at infinite dilution of a strong electrolyte c...

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  17. Describe what would happen to an acidic aqueous Na(2)SO(4) solution a...

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  18. What are primary cells? How does a dry cell function?

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  19. What is meant by dry cell ? Give its working.

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  20. Explain the working of lead storage battery.

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