Home
Class 11
CHEMISTRY
Use the thermochemical data given to ca...

Use the thermochemical data given to calculate `Deltah_(f)^(@)` for `N_(2)O_(5)(g)` in KJ/`mol^(-1)`
`N_(2)(g)+O_(2)(g)to 2NO(g) DeltaH^(@)=+180.5KJ`
`2NO(g)+O_(2)(g)to2NO_(2)(g) DeltaH^(@)=-114.1Kj`
`4NO_(2)(g)+O_(2)(g)to 2N_(2)O_(5) DeltaH^(@)=-110.2Kj`

A

`-332.8`

B

`-43.8`

C

`11.3`

D

`22.6`

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Topper's Solved these Questions

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise Subjective Type|69 Videos

Similar Questions

Explore conceptually related problems

Determine Delta U^(@) at 300K for the following reaction using the listed enthalpies of reaction : 4CO(g)+8H_(2)(g)to3CH_(4)(g)+CO_(2)(g)+2H_(2)O(l) C("graphite")+(1)/(2)O_(2)(g)to CO(g), DeltaH_(1)^(@)=-110.5KJ CO(g)(1)/(2)O_(2)(g)toCO_(2)(g), DeltaH_(2)^(@)=-282.9KJ H_(2)(g)+(1)/(2)O_(2)(g)to H_(2)O(l), DeltaH_(3)^(@)=-285.8KJ C("graphite")+2H_(2)(g)to CH_(4)(g), DeltaH_(4)^(@)=-74.8KJ

Determine DeltaH_(rxn) for the reaction in KJ . mol^(-1) 2NH_(3)(g)+(5)/(2)O_(2)(g)to2NO(g)+3H_(2)O(g).

Use the following data to calculate the molar enthalpy of combustion of ethane , C_(2)H_(6) : 2C_(2)H_(2)(g)+5O_(2)(g)to4CO_(2)(g)+2H_(2)O(l), DeltaH=-2511KJ//mol C_(2)H_(2)(g)+2H_(2)(G)to C_(2)H^(6)(g), DeltaH=-311KJ//mol 2H_(2)(g)+O_(2)(g)to 2H_(2)O(l), DeltaH=-484KJ//mol

Calculate the heat of formation of n butane from the followinf data: a. 2C_(4)H_(10)(g) +13O_(2)(g) rarr 8CO_(2)(g) +10H_(2)O(l), DeltaH = - 5757.2 kJ b. C(s) +O_(2) (g)rarrCO_(2)(g), DeltaH =- 405.4 kJ c. 2H_(2)(g) +O_(2)(g) rarr 2H_(2)O(l), DeltaH =- 572.4 kJ

GRB PUBLICATION-THERMODYNAMICS-All Questions
  1. Calculate DeltaH^(@) for the reaction : TiCl(4)(g)+2H(2)O(l)to TiO(2...

    Text Solution

    |

  2. Use bond energies to estimate the value of DeltaH^(@) for the reactio...

    Text Solution

    |

  3. Use the thermochemical data given to calculate Deltah(f)^(@) for N(2)...

    Text Solution

    |

  4. Which process requires the greatest amount of energy for 1 mole of H(2...

    Text Solution

    |

  5. If the circles represent molecules , which diagram provides the best m...

    Text Solution

    |

  6. Which of these coversios has a poitive DeltaS^(@)? (p)combustion of ...

    Text Solution

    |

  7. Given these reactions : Ato2B DeltaH=40KJ BtoCDeltaH=-50KJ 2CtoD ...

    Text Solution

    |

  8. Hydrazine , N(2)H(4) , contains aN-N single bond and 4N -H bonds . Use...

    Text Solution

    |

  9. Rank the enthalpy of fusion , sublimation and vaporization for water :

    Text Solution

    |

  10. The stande enthalpy of formation for NH(3)(g)is -46.1KJxxmol^(-1) .Cal...

    Text Solution

    |

  11. Which are exothrmic processes? (p) Combustion of ethane (Q)Dehyratio...

    Text Solution

    |

  12. Which sets of chemicals , when mixed , produce the observation (s) lis...

    Text Solution

    |

  13. The vapour pressure of phoshorus trichoride is100 mm Hg at 21.0^(@) an...

    Text Solution

    |

  14. Estimate the enthalpy of combustion of methane in KJ .mol^(-1) CH(4)...

    Text Solution

    |

  15. Which Statement is always true for an exothermic reaction ?

    Text Solution

    |

  16. For which reaction is DeltaH(rxn)^(@) equal to DeltaH(f)^(@) for CUSO...

    Text Solution

    |

  17. What is the value of DeltaH^(@) (inKJ) for this reaction ?ltbr gt ...

    Text Solution

    |

  18. The heat of a reaction is measured in a bomb calorimeter . This heat i...

    Text Solution

    |

  19. NO(g)to(1)/(2)N(2)(g)+(1)/(2)O(2)(g),DeltaH(1)^(@) 2NO(g)toN(2)O(g)+...

    Text Solution

    |

  20. When 2.74 g of Ba(s) reacts with O(2)(g) at 298K and 1 atm to from Ba(...

    Text Solution

    |