Home
Class 12
CHEMISTRY
If bond energies of H-H, Cl-Cl and H-Cl...

If bond energies of H-H, Cl-Cl and H-Cl respectively are 436, 235 and 430 `kjmol^(-1)` then `Delta^@`for the reation `1/2H_2 (g) + 1/2Cl_2 (g) rarr HCl (g)` will be

A

`110.5 kJ`

B

`-89.5 kJ`

C

`+89.5 kJ`

D

`+110.5 kJ`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The bond energies of H--H , Br--Br and H--Br are 433,, 192 and 364KJmol^(-1) respectively. The DeltaH^(@) for the reaction H_(2)(g)+Br_(2)(g)rarr2HBr(g) is

Enthalpy change for reaction 1//2H_(2)(g)+1//2Cl_(2)(g)toHCl(g) is called :-

Given the bond energies N=N , H and H-H bond are 945, 436 and 391KJmol^(-1) respectively, the enthalpy change of the reaction N_(2)(g)+3H_(2)(g)rarr2NH_(3)(g) is

Calculate free energy change for the reaction, H_(2)(g)+Cl_(2)(g)to2H-Cl(g) By using the bond energy and entropy data. Bond energies of H-H,Cl-Cl and H-Cl bonds are 435kJ mol^(-1),240jK" "mol^(-1) and 430jk" "mol^(-1) respectively standard entropies of H_(2),Cl_(2) and HCl are 130.59,222.95 and 186.68 JK^(-1)" "mol^(-1) respectively.

If the enthalpy change for the reaction, CH_(4)(g)+Cl_(2)(g)toCH_(3)Cl(g)+HCl(g),DeltaH=-25 kcal, bond energy of C-H is 20 kcal mol^(-1) greater than the bond energy of C-Cl and bond energies of H-H and H-Cl are same in magnitude, then for the reaction H_(2)(g)+Cl_(2)(g)to2HCl(g),DeltaH= ?

Given the bond energies of H - H and Cl - Cl are 430 kJ mol^(-1) and 240 kJ mol^(-1) , respectively, and Delta_(f) H^(@) for HCl is - 90 kJ mol^(-1) . Bond enthalpy of HCl is

The order and molecularity of the chain reaction, H_(2)(g)Cl_(2)(g)overset(kv)rarr2HCl(g) are :

AAKASH INSTITUTE-TEST 3-EXERCISE
  1. If bond energies of H-H, Cl-Cl and H-Cl respectively are 436, 235 and...

    Text Solution

    |

  2. Which one of the following acids has highest heat of neutralization wi...

    Text Solution

    |

  3. Which among the following is an intensive property?

    Text Solution

    |

  4. The amount of heat required to raise the temperature of 75 kg of ice a...

    Text Solution

    |

  5. A chemical reaction takes place in a vessel of cross-sectional area 15...

    Text Solution

    |

  6. Five moles of an ideal gas undergoes reversible expansion from 1 L to ...

    Text Solution

    |

  7. Enthalpy of which of the following reactions does not represent the st...

    Text Solution

    |

  8. One mole of an ideal gas undergoes change of state from (4 L, 3 atm) t...

    Text Solution

    |

  9. The difference between heat of reaction at constant pressure and at co...

    Text Solution

    |

  10. According to kinetic theory of gases, the inconrect statement is

    Text Solution

    |

  11. The most probable speed of an ideal gas at constant pressure varies wi...

    Text Solution

    |

  12. At high pressure, the compressibility factor for one mole of van der W...

    Text Solution

    |

  13. The suitable thermodynamic conditions for a spontaneous reaction at al...

    Text Solution

    |

  14. A closed cylinder contains 40 g of SO3 and 4 g of helium gas at 375 K....

    Text Solution

    |

  15. For given mass of an ideal gas at constant temperature

    Text Solution

    |

  16. Which among the following will boil at highest temperature?

    Text Solution

    |

  17. If 200 ml of 0.1 MH2SO4 salution is mixed with 200 ml of 0.15 M NaOH s...

    Text Solution

    |

  18. Unit of surface tension Is

    Text Solution

    |

  19. For which of the following processes, entropy change is negative?

    Text Solution

    |

  20. A liquid is in equilibrium with its vapour at a certain temperature. I...

    Text Solution

    |

  21. The work done by one mole of ideal gas when its temperature is increas...

    Text Solution

    |