Home
Class 11
CHEMISTRY
The value of Delta(f) H^(Θ) for NH(3) is...

The value of `Delta_(f) H^(Θ)` for `NH_(3)` is `-91.8 kJ mol^(-1)`. Calculate enthalpy change for the following reaction.
`2NH_(3) (g) rarr N_(2) (g) + 3H_(2) (g)`

Text Solution

Verified by Experts

Given `: (1)/(2)N_(2)(g) +(3)/(2)H_(2)(g) rarr NH_(3)(g), Delta_(f)H^(@) = -91.8 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

The enthalpy of formation of ammonia is -46.0 KJ mol^(-1) . The enthalpy change for the reaction 2NH_(3)(g)rarr N_(2)(g)+3H_(2)(g) is :

Using ._(f)G^(Theta)(Hi) = 1.3 kJ mol^(-1) , calculate the standard free enegry change for the following reaction: H_(2)(g) +I_(2)(g) rarr 2HI(g)

If Delta_(f)G^(@) for NH_(3)(g) is -16.4 kJ "mol"^(-1) , then DeltaG^(@) for the reaction: N_(2)(g) + 3H_(2)(g) to 2NH_(3)(g) is

Which of the following is correct for the reaction? N_(2)(g) + 3H_(2)(g) rarr 2NH_(3)(g)

The stande enthalpy of formation for NH_(3)(g) is -46.1KJxxmol^(-1) .Calculate DeltaH^(@) for the reaction : 2NH_(3)(g)toN_(2)(g)+3H_(2)(g)

PRADEEP-THERMODYNAMICS-NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTIONS( SHORT ANSWER QUESTIONS)
  1. One mole of acetone requires less heat to vaporise than 1 mole of wate...

    Text Solution

    |

  2. Standard molar enthalpy of formation, Delta(f) H^(Θ) is just a special...

    Text Solution

    |

  3. The value of Delta(f) H^(Θ) for NH(3) is -91.8 kJ mol^(-1). Calculate ...

    Text Solution

    |

  4. Enthalpy is an extensive property. In general, if enthalpy of an overa...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |