Home
Class 12
CHEMISTRY
A cell utilises the following reaction: ...

A cell utilises the following reaction:
`2CO^(3+) (aq)+Zn(s) to 2CO^(2+)(aq)+Zn^(2+) (aq)`
What is the effect on cell emf of each of the following changes?
The size or area of Zn (s) electrode is doubled

Text Solution

Verified by Experts

The emf is an intensive property and so the size of the electrode shall not affect the emf of the cell.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMOTIVE FORCE

    BODY BOOKS PUBLICATION|Exercise PROBLEMS |50 Videos

  • ELECTROMOTIVE FORCE

    BODY BOOKS PUBLICATION|Exercise EXERCISE |25 Videos

  • ELECTROCHEMISTRY

    BODY BOOKS PUBLICATION|Exercise EXAMPLES|134 Videos

  • General Principles and Processes of Isolation of Elements

    BODY BOOKS PUBLICATION|Exercise Example|108 Videos

Similar Questions

Explore conceptually related problems

A cell utilises the following reaction: 2CO^(3+) (aq)+Zn(s) to 2CO^(2+)(aq)+Zn^(2+) (aq) What is the effect on cell emf of each of the following changes? Co(II) nitrate is dissociated in the cathode compartment.

A cell utilises the following reaction: 2CO^(3+) (aq)+Zn(s) to 2CO^(2+)(aq)+Zn^(2+) (aq) What is the effect on cell emf of each of the following changes? Co(III) nitrate is dissolved in the cathode compartment

A cell utilises the following reaction: 2CO^(3+) (aq)+Zn(s) to 2CO^(2+)(aq)+Zn^(2+) (aq) What is the effect on cell emf of each of the following changes? Additional water is added to the anode compartment

Complete the following reaction. (Zn_(s) + NaOH_(aq) rarr^(heat) ……………….)

The reaction 1/2H_(2) (g) +AgCl(s) = H^(+) (aq) + CI^(-) (aq) + Ag(s) occurs in the galvanic cell

Write the half reactions for the following redox reaction. Zn(s) + 2H^+ (aq) rarr Zn^(2+) (aq) + H_2(g)

Represent the galvanic cell in which the reaction Is: Zn(s)+Cu^(2+) (aq) rarr Zn^(2+) (aq)+Cu(s)

The cell in which the following reaction occurs 2Fe^(3+)(aq)+2I-(aq) to 2Fe^(2+)(aq) + I_2(s) has E_(cell)^0 = 0.236V at 298 K. Calculate the standard Gibbs energy and equilibrium constant of the cell reaction

BODY BOOKS PUBLICATION-ELECTROMOTIVE FORCE -EXERCISE
  1. A cell utilises the following reaction: 2CO^(3+) (aq)+Zn(s) to 2CO^(...

    Text Solution

    |

  2. Is 1M H^+ solution under hydrogen gas at 1 atm capable of oxidising Ag...

    Text Solution

    |

  3. The potential of hydrogen electrode is -118mV. The concentration of H^...

    Text Solution

    |

  4. E^@ for the half cell Zn^(2+)|Zn is -0.76V emf of the cell Zn|Zn^(2+...

    Text Solution

    |

  5. The standard reduction potentials at 298K for the following half react...

    Text Solution

    |

  6. The standard reduction potentials E^@ for the half reactions are as ...

    Text Solution

    |

  7. From the following E^@ values of half cells, (i) A+e to A^(-) , E^@=...

    Text Solution

    |

  8. From the following E^@ values of half cells (i) A to A^(+)+e, E^@=+1...

    Text Solution

    |

  9. From the following E^@ values of half cells (i) A^(3-)to A^(2-) +e,...

    Text Solution

    |

  10. IF the following half cells have the E^@ values as Fe^(3+)+e to Fe^(...

    Text Solution

    |

  11. E^@ (red.) values of the half cells Mg^(2+)//Mg and Cl2//Cl^- are resp...

    Text Solution

    |

  12. For the cell reaction Zn(s)+Mg^(2+) (1M)=Zn^(2+) (1M) +Mg, the emf has...

    Text Solution

    |

  13. E^@ for F2+2e=2F^(-) is 2.8V, E^@ for 1/2 F2+e=F^(-) is

    Text Solution

    |

  14. Delta G^@ of the cell reaction AgCl(s)+1/2H2(g)=Ag(s)+H^+ +Cl^(-) is ...

    Text Solution

    |

  15. The value of equilibrium constant for the feasible cell reaction is

    Text Solution

    |

  16. E^@ for the reaction Fe+Zn^(2+)=Zn+Fe^(2+) is -0.35 V. The given cell...

    Text Solution

    |

  17. A galvanic cell is composed of two hydrogen electrodes, one of which i...

    Text Solution

    |

  18. 1/2 H2(g)+AgCl(s)=H^+ (aq)+Cl^(-) (aq)+Ag(s) occurs in the galvanic c...

    Text Solution

    |

  19. For the cell Tl|Tl^(+) (0.001M) ||Cu^(2+) (0.1M) |Cu. E(cell) at 25^@C...

    Text Solution

    |

  20. (i) E^@ (Cu^(2+),Cu)=0.34V (ii) E^@(Cu^+,Cu)=+0.52V (iii) E^@[O2(...

    Text Solution

    |

  21. Given below the half cell reactions Mn^(2+)+2e to Mn, E^@=-1.18V 2...

    Text Solution

    |