Home
Class 12
CHEMISTRY
The heat of reaction for N(2)+3H(2) rarr...

The heat of reaction for `N_(2)+3H_(2) rarr 2NH_(3)` at `27^(@)C` is `-91.94kJ` . What will be its value at `50^(@)C` ? The molar heat capacities at constant pressure and `27^(@)C` for `N_(2),H_(2)` and `NH_(3)` are `28.45, 28.32` and `37.07` joule respectively.

A

`-92.843` kJ

B

`-47.7723` kJ

C

`-132.5` kJ

D

`-176.114` kJ

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS AND THERMOCHEMISTRY

    FIITJEE|Exercise ASSIGNMENT PROBLEMS (OBJECTIVE) LEVEL-I (REASONING TYPE QUESTIONS)|2 Videos

  • THERMODYNAMICS AND THERMOCHEMISTRY

    FIITJEE|Exercise ASSIGNMENT PROBLEMS (OBJECTIVE) LEVEL-II|25 Videos

  • THERMODYNAMICS AND THERMOCHEMISTRY

    FIITJEE|Exercise ASSIGNMENT PROBLEMS (SUBJECTIVE) LEVEL -2|15 Videos

  • TEST PAPERS

    FIITJEE|Exercise CHEMISTRY|747 Videos

  • TRANSITION ELEMENTS & COORDINATION COMPOUNDS

    FIITJEE|Exercise MATCHIG LIST TYPE QUESTIONS|1 Videos

Similar Questions

Explore conceptually related problems

For the reaction N_(2) + 3 H_(2) = 2 NH_(3) ,

For N_(2)+3H_(3) hArr 2NH_(3)+"Heat"

The reaction , CH_(3)CHO + H_(2) N - NH_(2) rarr CH_(3) = N.NH_(2) is :

The heat change for the reaction, N_(2)(g)+3H_(2)(g)to2NH_(3)(g) is -92.2kJ. Calculate the heat of formation of ammonia.

FIITJEE-THERMODYNAMICS AND THERMOCHEMISTRY -ASSIGNMENT PROBLEMS (OBJECTIVE) LEVEL-I
  1. Calculate enthalpy change of the following reaction : CH(2) = CH(2)(...

    Text Solution

    |

  2. Estimate the average S-F bond enthalpy in SF(6). The values of standar...

    Text Solution

    |

  3. The heat of reaction for N(2)+3H(2) rarr 2NH(3) at 27^(@)C is -91.94kJ...

    Text Solution

    |

  4. Given Delta("ioniz")H^(o)(HCN)=45.2 kJ mol^(-1) and Delta("ioniz")H^(o...

    Text Solution

    |

  5. If H(2)(g) <implies 2H(g) Then heat of atomization of H(2) is

    Text Solution

    |

  6. At 298 K in a constant volume calorimeter 0.01 mole of TNT was detonat...

    Text Solution

    |

  7. The difference between heat of reaction and change in internal energy ...

    Text Solution

    |

  8. One mole of an ideal gas expand spontaneously into a vacccum. The work...

    Text Solution

    |

  9. Which of the following processes is an isoentropic process?

    Text Solution

    |

  10. When solid NH(4)NO(3) is dissolved in water at 25^(@)C, the temperatur...

    Text Solution

    |

  11. Which of the following expression represent the work done in reversibl...

    Text Solution

    |

  12. The heats of neutralisation of four acidsA,B,C and D are -13.7,-9.4,-1...

    Text Solution

    |

  13. Which fuel provides the highest calorific value?

    Text Solution

    |

  14. Given at A(s) to A(l), DeltaH =x A(l) to A(g), DeltaH =y The hea...

    Text Solution

    |

  15. A person requires 2870 kcal of energy to lead normal daily life. If he...

    Text Solution

    |

  16. If, combustion of 4g of CH(4) liberates 2.5kcal of heat, the heat of c...

    Text Solution

    |

  17. AB,A(2) and B(2) are diatomic molecules. If the bond enthalpies of A(2...

    Text Solution

    |

  18. DeltaC(p) for the change, N(2)(g) + 3H(2)(g) = 2NH(3)(g) is

    Text Solution

    |

  19. The heats of oxidation of Mg and Fe are given (a) Mg + 1/2O(2) to Mg...

    Text Solution

    |

  20. H^(+)(aq) + NaOH(aq) = Na^(+) + H(2)O(l) ,DeltaH(1) -13690 cal HCN(a...

    Text Solution

    |