Home
Class 12
CHEMISTRY
Enthalpy change for the reaction, 4H((g)...

Enthalpy change for the reaction, `4H_((g))rarr 2H_(2(g))` is `-869.6` kJ
The dissociation energy of H-H bond is :

A

`+ 217.4 kJ`

B

`-434.8 kJ`

C

`-869.6 kJ`

D

`+434.8 kJ`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section -D) Assertion-Reason Type Questions|15 Videos

  • THERMODYNAMICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section - B) Objective Type Questions|35 Videos

  • THE SOLID STATE

    AAKASH INSTITUTE|Exercise Assignment (SECTION - D) (ASSERTION-REASON TYPE QUESTION)|20 Videos

Similar Questions

Explore conceptually related problems

Enthalpy change for the reaction 4H(g)rarr2H_2(g) is -869.6kJ The dissociation energy of H-H bond is:

Enthalpy change for the reaction 2N_((g))+6H_((g))to2NH_(3(g))is-900 KJ The dissociation energy of N - H bond is

Enthalpy change of the reaction 2H(g) to H_(2)(g) is -104 kcal The H-H bond dissociation energy is

The enthalpy change for the reaction, C_(2)H_(6)(g)rarr2C(g)+6H(g) is X kJ. The bond energy of C-H bond is :

AAKASH INSTITUTE-THERMODYNAMICS-ASSIGNMENT (Section - C) Previous Years Questions
  1. Which of the following is correct option for the free expansion of an ...

    Text Solution

    |

  2. If the enthalpy change for the transition of liquid water to steam is ...

    Text Solution

    |

  3. Enthalpy change for the reaction, 4H((g))rarr 2H(2(g)) is -869.6 kJ ...

    Text Solution

    |

  4. Consider the following processes :- {:(,DeltaH(kJ//mol)),((1)/(2)A r...

    Text Solution

    |

  5. Standrad entropies of X(2), Y(2) and XY(3) are 60, 40 and "50 JK"^(-1)...

    Text Solution

    |

  6. Match List I ( Equations) with List II (Type of processes) and select...

    Text Solution

    |

  7. 1 moles of an ideal gas expanded spontaneously into vaccum. The work d...

    Text Solution

    |

  8. For vaporization of water at 1 atmospheric pressure the values of Delt...

    Text Solution

    |

  9. The following teo reaction are known : Fe(2)O(3)(s)+3CO(g)rarr2Fe(s)...

    Text Solution

    |

  10. The values of DeltaH and DeltaS for the reaction, C("graphite")+CO(2...

    Text Solution

    |

  11. From the following bond energies H-H bond energy 431.37 kJ mol^(-1) ...

    Text Solution

    |

  12. Bond dissociation enthalpy of H(2) , Cl(2) and HCl are 434, 242 and 43...

    Text Solution

    |

  13. For the gas-phase decomposition, PCl(5)(g)LeftrightarrowPCl(3)(g)+Cl...

    Text Solution

    |

  14. Which of the following are not state functions? (i) q+ w (ii) q ...

    Text Solution

    |

  15. Consider the following reactions: (i) H^(+)(aq)+OH^(-)(aq)rarrH(2)O(...

    Text Solution

    |

  16. Given the bond energies of H - H and Cl - Cl are 430 kJ mol^(-1) and 2...

    Text Solution

    |

  17. Identify the correct statement for change of Gibbs energy for a system...

    Text Solution

    |

  18. Assume each reaction is carried out in an open container. For which r...

    Text Solution

    |

  19. The enthalpy and entropy change for the reaction Br(2)(l) + Cl(2)(g)...

    Text Solution

    |

  20. At 25^(@)C, standard enthalpy of combustion of combustion of hydrogen,...

    Text Solution

    |