Home
Class 12
CHEMISTRY
Consider the following cell reaction 2...

Consider the following cell reaction
`2Fe_((s))+O_(2(g))+4H_((aq.))^(o+)rarr2Fe_((aq.))^(+2)+2H_(2)O_((l))" "E^(@)=1.67V`
At `[Fe^(+2)]=10^(-3)M, P(O_(2))=0.1" atm and pH = 3, the cell potential at "25^(@)C` is …….
Use `(2.303RT)/(F)=0.059`

A

`(1.47V)`

B

`(1.77V)`

C

`(1.87V)`

D

`(1.57V)`

Text Solution

Verified by Experts

`2Fe_((s))+O_(2_((g))+4H_((aq))^(+))to 2Fe_((aq))^(+2)+2H_2O_((l))`
n=4 (no. of electrons involved)
`E_(cell)=E_(cell)^(o)-(0.0591)/nlog. ([Fe^(2+)])/(P_(o_2)xx[H^(+)]^(4))=1.67-(0.0591)/4log.((10^(-3))^(2))/(0.1xx(10^(-3))^(4)){Q [H^(+)]=10^(-pH)}`
`1.67-0.103=1.57V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    VMC MODULES ENGLISH|Exercise FUNDAMENTAL|50 Videos

  • ELECTROCHEMISTRY

    VMC MODULES ENGLISH|Exercise ENABLE|50 Videos

  • ELECTROCHEMISTRY

    VMC MODULES ENGLISH|Exercise JEE Main (Archive)|57 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    VMC MODULES ENGLISH|Exercise JEE ADVANCE (ARCHIVE)|30 Videos

  • ENVIRONMENTAL CHEMISTRY

    VMC MODULES ENGLISH|Exercise JEE Main (Archive)|39 Videos

Similar Questions

Explore conceptually related problems

Consider the following cell reation : 2Fe(s)+O_(2)(g)+4H^(o+)(aq) rarr 2Fe^(2+)(aq)+2H_(2)O(l)" "E^(c-)=1.67V At[Fe^(2+)]=10^(-3)M,p(O_(2))=0.1atm and pH=3 . The cell potential at 25^(@)C is (a) 1.47V (b) 1.77V (c) 1.87V (d) 1.57V

Consider the following cell reaction. 2Fe(s)+O_(2)(g)+4H^(+)(aq)rarr2Fe^(2+)(aq)+2H_(2)O(l), E^(@)=1.67V At [Fe^(2+)]=10^(-3)M,P(O_(2))=0.1 atm and pH=3, the cell potential at 25^(@)C is

Consider the following cell reaction 2Fe(s)+O_(2)(g)+4H^(+)(aq) rarr 2Fe^(2+)(aq)+2H_(2)O(l) If E_("cell")=E_("cell")^(@) at 25^(@)C and [Fe^(2+)]=10^(-3)M,P_(O_(2))=0.01 atm and pH=x value of x is

Balanced the following equations: H_(2)O_(2)+H^(o+)+Fe^(2+)rarr H_(2)O+Fe^(3+)

The equivalent weight of FeS_(2) in the following reaction is FeS_(2)+O_(2) rarr Fe^(+3)+SO_(2)

Complete the following chemical equations : (i) MnO_(4)^(-) (aq) + S_(2)O_(3)^(2-) (aq) + H_(2) O(l) to1 (ii) Cr_(2)O_(7)^(2-) (aq) + Fe^(2+)(aq) + H^(+) (aq) to

Balance the following redox reactions by ion-electron method. H_(2)O_(2)(aq)+Fe^(2+)(aq)toFe^(3+)(aq)+H_(2)O(l) (in acidic solution)

Delta_rG^@ for the cell with the cell reaction : Zn_((s))+ Ag_2O_((s)) + H_2O_((l)) to Zn_((aq))^(2+) + 2Ag_((s)) + 2OH_((aq))^(-) [E_(Ag_2O // Ag)^(@)=0.344 V, E_(Zn^(2+)//Zn)^@=-0.76 V]

Which of the following statements is correct about the reaction given below:- 4Fe(s)+3O_(2)(g)rarr2Fe_(2)O_(3)(g)

Which of the following statements is correct about the reaction given below:- 4Fe(s)+3O_(2)(g)rarr2Fe_(2)O_(3)(g)

VMC MODULES ENGLISH-ELECTROCHEMISTRY-JEE Advanced (Archive)
  1. The total number of moles of chlorine gas evolved is:

    Text Solution

    |

  2. A 2.0 molar aqueous solution of NaCl is prepared and 500 mL of this so...

    Text Solution

    |

  3. The total charge for Fe(II) (in coulombs) required for complete elect...

    Text Solution

    |

  4. Electrolysis of dilute aqueous NaCl solution was carried out by passin...

    Text Solution

    |

  5. For the reduction of NO(3)^(c-) ion in an aqueous solution, E^(c-) is ...

    Text Solution

    |

  6. For the above cell :

    Text Solution

    |

  7. If the 0.05 molar solution of M^+ is replaced by a 0.0025 molar solu...

    Text Solution

    |

  8. Consider the following cell reaction 2Fe((s))+O(2(g))+4H((aq.))^(o+)...

    Text Solution

    |

  9. AgNO(3)(aq) was added to an aqueous KCl solution gradually and the con...

    Text Solution

    |

  10. The electrochemical cell shown below is a concentration cell. M|M^(2+)...

    Text Solution

    |

  11. The value of DeltaG ((KJmol^(-1)) for the given cell is : ( Taken 1F =...

    Text Solution

    |

  12. The standard reduction potential data at 25^(@)C is given below E^(@...

    Text Solution

    |

  13. An aqueous solution of X is added slowly to an aqueous solution of Y a...

    Text Solution

    |

  14. In a galvanic cell, the salt-bridge

    Text Solution

    |

  15. All the energy released from the reaction XtoY,Delta (r)G^(@) = -193K...

    Text Solution

    |

  16. For the following electrochemical cell at 298 K, Pt(s)|H(2)("g, 1 ba...

    Text Solution

    |

  17. For the following cell, Zn(s)|ZnSO(4)(aq)||CuSO(4)(aq)|Cu(s) when the ...

    Text Solution

    |

  18. The conductance of 0.0015 M aqueous solution of a weak monobasic acid ...

    Text Solution

    |

  19. Consider an electrochemical cell : A((s))|A^(n+)((aq,2M)||B^(2n+) ((aq...

    Text Solution

    |

  20. For the electrochemical cell, Mg(s) |Mg^(2+) (aq, 1 M)||Cu^(2+)(aq, 1 ...

    Text Solution

    |