Home
Class 12
CHEMISTRY
What is the potential for the cell Cr|...

What is the potential for the cell
`Cr|Cr^(3+)(0.1M)||Fe^(2+)(0.01M)|Fe`
`E^(@)Cr^(3+)// Cr=-0.74V`,
`E^(@)Fe^(2+)//Fe=-0.44V`

A

`-173.7 KJ`

B

`-17.37 KJ`

C

`-1,737 KJ`

D

`-0.1737 KJ`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos

  • ELECTROCHEMISTRY

    TARGET PUBLICATION|Exercise CRITICAL THINKING|76 Videos

  • D AND F-BLOCK ELEMENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    TARGET PUBLICATION|Exercise Evaluation Thinking|15 Videos

Similar Questions

Explore conceptually related problems

The EMF of the cell, Cr|Cr^(+3) (0.1M) ||Fe^(+2) (0.01M)|Fe (Given: E^(0) Cr^(+3)|Cr =- 0.75 V, E^(0) Fe^(+2)|Fe =- 0.45 V)

Calculate the e.f.m of the cell Cr|Cr^(3+)(0.1M)||Fe^(2+)(0.01M)|Fe [given that E_(Cr^(3+)//Cr)^(@)=-0.75,E_(Fe^(2+)//Fe)^(@)=-0.45V]

Calculate the potential of the following half - cells | cells : a. Cr|Cr^(3+)(0.1 M)||Fe^(2+)(0.01M)|Fe Given : E^(c-)._(Cr^(3+)|Cr)=-0.74V E^(c-)._(Fe^(2+)|Fe)=-0.44V b. 6e^(c-)+BrO_(3)^(c-)(aq)+3H_(2)OrarrBr^(c-)(aq)+6OH(aq) Given :E^(c-)._((BrO_(3)^(c-)|Br^(c-)))=0.61V, [BrO_(3)^(c-)]=2.5xx10^(-3)M,[Br^(c-)]=5.0xx10^(-3)M,pH=9.0 c. Ag|Ag^(o+)(0.1M)||Cl^(c-)(0.02M)|Cl_(2)(g)(0.5atm)|Pt Given E_((Ag^(o+)|Ag))=0.80V,E^(c-)((Cl_(2)|2Cl^(c-))=1.36V d. NO_(3) ^(c-)(aq)+2H^(o+)(aq)+e^(-)rarrNO_(2)+H_(2)O Given : E^(c-)._(NO_(3)^(c-)|NO_(2)=0.78V What will be the reductino potential of the half cell in neutral solution ? Assuming all the other species to be at unit concentration.

What is the value of E^(@) cell in the following reaction? Cr|Cr^(3+) (0.1 M)||Fe^(2+) (0.01 M)|Fe Given, E_(Cr^(3+)//Cr)^(@)=-0.74 V, E_(Fe^(2+)//Fe)^(@)=-0.44 V

Calculate the e.m.f. of the cell, Cr//Cr^(3+)(0.1 M) || Fe^(2+)(0.01 M)//Fe "Given" : E_(Cr^(3+)//Cr)^(@)=-0.75" V ", E_(Fe^(2+)//Fe)^(@)=-0.45" V " "Cell reaction" : 2Cr(s)+3Fe^(2+)(aq) to 2Cr^(3+)(aq)+3Fe(s) {"Hint". E_(cell)=E_(cell)^(@)-(0.0591V)/(6)"log"([Cr^(3+)]^(2))/([Fe^(2+)]^(3)}

Find out work done for the given cell Cr| Cr^(+3)|| Fe^(+2)| Fe E_(Cr//Cr^(2+))^(@) = 0.74V, E_(Fe^(2+)//Fe)^(@) = -0.44V

TARGET PUBLICATION-ELECTROCHEMISTRY-COMPETITIVE THINKING
  1. Consider the following cell reaction. 2Fe(s)+O(2)(g)+4H^(+)(aq)rarr2...

    Text Solution

    |

  2. The Gibbs energy for the decomposition of Al(2)O(3) at 500^(@)C is as ...

    Text Solution

    |

  3. What is the potential for the cell Cr|Cr^(3+)(0.1M)||Fe^(2+)(0.01M)|...

    Text Solution

    |

  4. For a spontaneous reaction the DeltaG, equilibrium constant (K) and E(...

    Text Solution

    |

  5. What is the free energy change per mole of Cu(II) ion formed in a cell...

    Text Solution

    |

  6. If the E(cell)^(@) for a given reaction has a positive value, then whi...

    Text Solution

    |

  7. The rusting of iron takes place as follows : 2H^(o+)+2e^(-) +(1)/(2...

    Text Solution

    |

  8. For hydrogen oxygen fuel cell at atm and 298 K H(2)g+1/2O(2)(g)rarrH...

    Text Solution

    |

  9. For a cell reaction involving a two-electron change, the standard e.m...

    Text Solution

    |

  10. The emf of the cell, Zn|Zn^(2+) (0.01 M)||Fe^(2+) (0.001 M)|Fe at 29...

    Text Solution

    |

  11. The standard EMF of a galvanic cell involving cell reaction with n=2 i...

    Text Solution

    |

  12. The platinised plate in SHE is used as .

    Text Solution

    |

  13. Standard hydrogen electrode .

    Text Solution

    |

  14. Calomel is .

    Text Solution

    |

  15. Dry cell converts .

    Text Solution

    |

  16. In a dry cell, what acts as negative electrode ?

    Text Solution

    |

  17. What is the density of solution of sulphuric acid used as an electroly...

    Text Solution

    |

  18. Which among the following equations represents the reduction reaction ...

    Text Solution

    |

  19. In lead storage battery, the anode reaction is

    Text Solution

    |

  20. While charging the lead storage battery:

    Text Solution

    |