Home
Class 12
CHEMISTRY
For the reaction 4Al(s)+2O2(g)+6H2O+4O...

For the reaction
`4Al(s)+2O_2(g)+6H_2O+4OH^- `E_("cell")^0=2.73V` If `/_\G^0(OH^-)=-157kJ mol^(-1)` and `/_\G^0(H_2O)=-237.2kJ mol^(-1)`. Determine
`/_\G_f^0[Al(OH)_4]`

Text Solution

Verified by Experts

The correct Answer is:
A, C
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MOTION|Exercise EXERCISE-4,I|30 Videos

  • ELECTROCHEMISTRY

    MOTION|Exercise EXERCISE-4,II|44 Videos

  • ELECTROCHEMISTRY

    MOTION|Exercise EXERCISE -2 (LEVEL-2)|26 Videos

  • D-BLOCK ELEMENTS

    MOTION|Exercise Exercise IV Level-II|9 Videos

  • GASEOUS STATE

    MOTION|Exercise EXERCISE-4( LEVEL-II)|19 Videos

Similar Questions

Explore conceptually related problems

DeltaG^(c-) or the reaction is , 4Al+3O_(2)+6H_(2)O+4overset(c-)(O)H rarr 4 Al(OH)_(4)^(c-) E^(c-)._(cell)=2.73V Delta_(f)G^(c-)._((overset(c)(O)H))=-157k J mol^(-1) Delta_(f)G^(c-)._((overset(c-)(O)H))=-237k J mol^(-1)

For hydrogen oxygen fuel cell with reaction 2H_(2)(g)+O_(2)(g) rarr 2 H_(2)O(l) DeltaG_(f)^(c-)(H_(2)O)=-237.2kJ mol^(-1) . Hence, EMF of the fuel cell is

For the reaction : 4Al+ 3O_(2) + 6H_(2)O+ 4OH^(-) rightarrow4A1(OH)_(4)^(-) E^(@)_(cell) = 2.73V . Standard Gibb's free energy change for the reaction is :

For the reaction 3N_(2)O(g)+2NH_(3)(g)to4N_(2)(g)+3H_(2)O(g),DeltaH^(@)=-879.6kJ If DeltaH_(f)^(@)[NH_(3)(g)]=-45.9kJ" "mol^(-1) , DeltaH_(f)^(@)[H_(2)O(g)]=-241.8kJ" "mol^(-1) Then DeltaH_(f)^(@)[N_(2)O(g)] will be:

For the reaction CH_4(g) + 2O_2(g) hArr CO_2(g) + 2H_2O(l) , Delta_rH=-170.8 "kJ mol"^(-1) Which of the following statement is not true?

Diborane is a potentail rocket fuel which undergoes combusion according to the reaction B_(2)H_(6)(g)+3O_(2)(g)rarrB_(2)O_(3)(s)+3H_(2)O(g) From the following data, calculate the enthalpy change for the combustion of diborane 2B(s)+(3//2)O_(2)(g)rarrB_(2)O_(3)(s) DeltaH= -1273 kJ mol^(-1) H_(2)(g)+(1//2)O_(2)(g)rarrH_(2)O(1) " "Delta H= -286 kJ mol^(-1) H_(2)O(1)rarrH_(2)O(g)" "DeltaH=44 kJ mol^(-1) 2B(s)+3H_(2)(g)rarrB_(2)H_(6)(g)" "Delta H= 36kJ mol^(-1)

MOTION-ELECTROCHEMISTRY-EXERCISE-3
  1. The standard reduction potential at 25^(@)C for the reduction of water...

    Text Solution

    |

  2. At 25^(@)C the value of K of the equilibrium Fe^(3+)+Ag<impliesFe^(2+)...

    Text Solution

    |

  3. For the reaction 4Al(s)+2O2(g)+6H2O+4OH^-<implies4[Al(OH)4^-] E("c...

    Text Solution

    |

  4. Calculate the no. of electrons lost or gained during elelctrolysis of ...

    Text Solution

    |

  5. Calculate the no. of electrons lost or gained during elelctrolysis of ...

    Text Solution

    |

  6. Calculate the no. of electrons lost or gained during elelctrolysis of ...

    Text Solution

    |

  7. How many faradays of electricity are involved in each of the case 0....

    Text Solution

    |

  8. How many faradays of electricity are involved in each of the case 27...

    Text Solution

    |

  9. How many faradays of electricity are involved in each of the case Th...

    Text Solution

    |

  10. 0.5 mole of electron is passed though two electrolytic cells in series...

    Text Solution

    |

  11. The electrosynthesis of MnO2 is carried out from a solution of MnSO4 i...

    Text Solution

    |

  12. If 0.224 L of H(2) gas is formed at the cathode, the volume of O(2) ga...

    Text Solution

    |

  13. Assume 96500 C as one unit of electricity. If cost of electricity of p...

    Text Solution

    |

  14. Chromium metal can be plated out from an acidic solution containing Cr...

    Text Solution

    |

  15. Chromium metal can be plated out from an acidic solution containing C...

    Text Solution

    |

  16. Calculate the quantity of electricity that would be required to reduce...

    Text Solution

    |

  17. How long (in sec) a current of 2A has to be passed through a solution ...

    Text Solution

    |

  18. A metal is know to form fluoride MF(2). When 10A of electricity is pas...

    Text Solution

    |

  19. 10g fairly concentrated solution of CuSO(4) is electrolyzed using 0.01...

    Text Solution

    |

  20. 10g solution of CuSO4 is electrolyzed using 0.01F of electricity. Calc...

    Text Solution

    |