Home
Class 11
CHEMISTRY
Use the following data to calculate Delt...

Use the following data to calculate `Delta_("lattice")H^(@)` for NaBr. `Delta_("sub")H^(@)` for sodium metal = `108.4 kJ "mol"^(-1)`.Ionization enthalpy of sodium = 496`kJ "mol"^(-1)` Electron gain enthalpy of bromine = `-325 kJ "mol"^(-1)`.Bond dissociation enthalpy of bromine = 192 kJ ` "mol"^(-1)`. `Delta_(f)^(H^(@))` for NaBr (s) = `-360.1 kJ "mol"^(-1)`.

Text Solution

Verified by Experts

Proceed as in calculation of lattice enthalpy for NaCl on page .
We get `Delta_("lattice") H^(@) ( NaBr)= - 360 .1 kJ mol^(-1)`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    PRADEEP|Exercise MATCHING TYPE QUESTIONS|8 Videos
  • THERMODYNAMICS

    PRADEEP|Exercise ASSERTION AND REACTION TYPES QUESTIONS|3 Videos
  • THERMODYNAMICS

    PRADEEP|Exercise NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTIONS( MULTIPLE CHOICE QUESTIONS-II)|5 Videos
  • STRUCTURE OF ATOM

    PRADEEP|Exercise Competition Focus (JEE (Main and Advanced)/Medical Entrance (IX. Assertion And Reason Type Questions (Type II))|12 Videos

Similar Questions

Explore conceptually related problems

Use the following data to calculate Delta_("lattice") H^(@) for NaBr. Delta_("sub")H^(@) for sodium metal =108.4 kJ mol^(-1) , ionization enthalpy of sodium =496 kJ mol^(-1) ., electron gain enthalpy of bromine =-325 kJ mol^(-1) bond dissociation enthalpy of bromine =192 kJ mol^(-1) , Delta _f H^(@) for NaBr(s) - 360 kJ mol^(-1) .

For Br_2(l) Enthalpy of atomisation = x kJ/mol, Bond dissociation enthalpy of bromine = y kJ/mole, then

Lattice energy of NaCl(s) is -790 kJ " mol"^(-1) and enthalpy of hydration is -785 kJ " mol"^(-1) . Calculate enthalpy of solution of NaCl(s).

The enthalpy of solution of sodium chloride is 4 kJ mol^(-1) and its enthalpy of hydration of ion is -784 kJ mol^(-1) . Then the lattice enthalpy of NaCl (in kJ mol^(-1) ) is

PRADEEP-THERMODYNAMICS-NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTIONS( SHORT ANSWER QUESTIONS)
  1. Enthalpy is an extensive property. In general, if enthalpy of an overa...

    Text Solution

    |

  2. The enthaply of atomisation for the reaction : CH(4)(g) to C(g) + 4 H(...

    Text Solution

    |

  3. Use the following data to calculate Delta("lattice")H^(@) for NaBr. De...

    Text Solution

    |

  4. Given that DeltaH=0 for mixing of two gases. Explain whether the diffu...

    Text Solution

    |

  5. Heat has randomising influence on a system and temperature is the meas...

    Text Solution

    |

  6. Increase in enthalpy of the surroundings is equal to decrease in entha...

    Text Solution

    |

  7. At 298 K, K(p) for the reaction : N(2)O(4)(g) iff 2NO(2)(g) is 0.98. P...

    Text Solution

    |

  8. A sample of 1.0 mole of a monoatomic ideal gas is taken through a cycl...

    Text Solution

    |

  9. The standard molar entropy of H(2)O(l) is 70 J K^(-1) "mol"^(-1).Wil...

    Text Solution

    |

  10. Identify the state functions and path functions out of the following: ...

    Text Solution

    |

  11. The molar enthalpy of vapourisation of acetone is less than that of wa...

    Text Solution

    |

  12. Which quantity out of Delta(r)G or Delta(r)G^(@) will be zero at equil...

    Text Solution

    |

  13. Predict the change in internal energy for an isolated system at consta...

    Text Solution

    |

  14. Although heat is a path function but heat absorbed by the system under...

    Text Solution

    |

  15. Expansion of a gas in vaccum is called free expansion.Calculate the wo...

    Text Solution

    |

  16. Heat capacity (C(p)) is an extensive property but specific heat (C) is...

    Text Solution

    |

  17. The difference between C(p) and C(v) can be derived using the empirica...

    Text Solution

    |

  18. If the combustion of 1 g of graphite produces -20.7 kJ of heat, what w...

    Text Solution

    |

  19. The net enthalpy change of a reaction is the amount of energy required...

    Text Solution

    |

  20. The enthalpy of vaporisation of C CI(4) is 30.5 kJ "mol"^(-1).Calcul...

    Text Solution

    |