Home
Class 12
CHEMISTRY
H2(g)+Cl2(g)=2HCl(g), triangleH=-44.12 ...

`H_2(g)+Cl_2(g)=2HCl(g),` ` triangleH`=-44.12 kcal` The enthalpy of hydrogen cholride at 298 K is:

A

`-44.12`

B

`-22.06`

C

44.12

D

22.06

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    MBD PUBLICATION|Exercise Question Bank|390 Videos

  • TRANSITION METALS (d-BLOCK ELEMENTS)

    MBD PUBLICATION|Exercise QUESTION BANK|1320 Videos

Similar Questions

Explore conceptually related problems

For H_2(g)+I_2(g)⇌2HI(g) , triangle H=12.4 K cal . The enthalpy of formation of HI is:

If H_2(g)=2H(g), triangleH =104 cal, then heat of atomisation of hydrogen is:

Given N_2(g)+3H_2(g)=2NH_3(g), triangleH^@ =-22kcal. The standard enthalpy of formation of NH_3 gas is:

H_2(g)+I_2(g)rarr2HI(g), triangleH=-12.40 kcals , Heat of formation of HI will be

H_2(g)+Cl_2(g)→2HCl(g) , triangleH 298K=-22.06 kcals, For this reaction, △U is equal to:

For the reaction, C_2H_4(g)+3O_2(g)rarr2CO_2(g)+2H_2O(l), triangleU=-1414kJ . Then triangleH at 27^@C is:

If, S+O_2rarrSO_2, triangleH=-298.2 kJ (i) SO_2+1/2O_2rarrSO_3, triangleH =-98.7 kJ (ii) SO_3+H_2OrarrH_2SO_4, triangleH=-130.2 kJ (iii) H_2+1/2O_2rarrH_2O, triangle=-287.3 kJ The enthalpy of formation of H_2SO_4 at 298 K will be:

If the enthalpy change for the reaction CH_4(g)+Cl_2(g)rarrCH_3Cl(g)+HCl(g) , triangleH =-25 kcal. Bond energy of C-H is 20kcal/mol 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: 1//2H_2(g)+1//2Cl_2(g)rarrHCl(g) triangleH is

Given , NH_3(g)+3Cl_2(g)⇌NCl_3(g)+3HCl(g), -triangleH_1 N_2(g)+3H_2(g)⇌2NH_3(g), triangleH_2 H_2(g)+Cl_2(g)⇌2HCl(g),+triangleH_3 The heat of formation of NCl_3(g) in the terms of triangleH_1, triangleH_2 and triangle_3 is:

H_2(g)+1/2O_2(g)=H_2O(l) , triangleH_298k =-68.32 kcal. Heat of vaporisation of water at 1 atm and 25^@C is 10.52 kcal. The standard heat of formation(in kcal) of 1 mole of water vapour at 25^@C is:

MBD PUBLICATION-THERMODYNAMICS-Question Bank
  1. The heat of formation of CO(g) and CO 2 ​ (g) are ΔH=−110 and ΔH=−39...

    Text Solution

    |

  2. If, S+O2rarrSO2, triangleH=-298.2 kJ (i)SO2+1/2O2rarrSO3, triangleH ...

    Text Solution

    |

  3. H2(g)+Cl2(g)=2HCl(g), triangleH=-44.12 kcal The enthalpy of hydrogen ...

    Text Solution

    |

  4. H2(g)+1/2O2(g)=H2O(l), triangleH298k=-68.32 kcal. Heat of vaporisati...

    Text Solution

    |

  5. Standard heat of formation of CH4(g), CO2(g) and water at 25^@C are -1...

    Text Solution

    |

  6. Molar heat capacity is given by:

    Text Solution

    |

  7. Heat of neutralisation of a strong acid and strong base is always.

    Text Solution

    |

  8. Endothermic compounds are generally:

    Text Solution

    |

  9. The heat evolved during neutralisation is maximum in the reaction of:

    Text Solution

    |

  10. For the reaction, CaCO3(s)rarrCaO(s)+CO2(g)

    Text Solution

    |

  11. triangleH for transition of cardon in the diamond from to carbon in th...

    Text Solution

    |

  12. Which represents the largest amount of energy :

    Text Solution

    |

  13. In the combustion of hydrocarbons, triangleH is:

    Text Solution

    |

  14. For an endothermic reaction

    Text Solution

    |

  15. The enthalpies of formation of organic substances can be conveniently ...

    Text Solution

    |

  16. Entropy of vaporisation of water at 100^@C, if molar heat of vaporisat...

    Text Solution

    |

  17. One mole of ice is converted into water at 273 K. The entropies of H2O...

    Text Solution

    |

  18. One mole of a gas absorbs 200 J of heat at constant volume. Its temper...

    Text Solution

    |

  19. A system absorbs 10 kJ of heat at contant volume and its temperature r...

    Text Solution

    |

  20. One mole of a gas occupying 3 dm^3 expands against constant external p...

    Text Solution

    |