Home
Class 11
CHEMISTRY
Consider the reaction, 4NO(2)(g)+O(2)(...

Consider the reaction,
`4NO_(2)(g)+O_(2)(g)rarr2N_(2)O_(5)(g),Delta_(r )H=-111 kJ.` If `N_(2)O_(5)(s)` is formed instead of `N_(2)O_(5)(g)` in the above reaction, the `Delta_(r )H` value will be
(Given, `DeltaH` of sublimation for `N_(2)O_(5)` is `54 kJ mol^(-1))`

A

`- 165kJ`

B

`+54 kJ`

C

`+219 kJ`

D

` -219 kJ`

Text Solution

Verified by Experts

The correct Answer is:
A

By Hess's law,`DeltaH+ 54 = - 111kJ` or `DeltaH= - 165kJ`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    PRADEEP|Exercise Comprehension 1|1 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise Comprehension 2|2 Videos

  • THERMODYNAMICS

    PRADEEP|Exercise SHORT ANSWER QUESTIONS|65 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

For the first order reaction 2N_(2)O_(5)(g) rarr 4NO_(2)(g) + O_(2)(g)

For a reaction, 2N_(2)O_(5)(g) to 4NO_(2)(g) + O_(2)(g) rate of reaction is:

The reaction 2N_(2)O_(5)(g)rarr4NO_(2)(g)+O_(2)(g) is found to be firt order with respect to N_(2)O_(5)(g) . Which of the following is correct ?

For the following reaction, the value of K change with N_(2)(g)+O_(2)(g) lt lt 2NO(g), DeltaH=+180 kJ mol^(-1)

PRADEEP-THERMODYNAMICS-COMPETITION FOCUS (JEE ( main andAdvanced ) /Medical Entrance Special)
  1. Enthalpy of CH(4)+(1)/(2)O(2)rarrCH(3)OH is negative. If enthalpy of...

    Text Solution

    |

  2. The standard heats of formation of NO(2)(g) and N(2)O(4)(g) are 8.0 an...

    Text Solution

    |

  3. Consider the reaction, 4NO(2)(g)+O(2)(g)rarr2N(2)O(5)(g),Delta(r )H=...

    Text Solution

    |

  4. Consider the following processes :- {:(,DeltaH(kJ//mol)),((1)/(2)A r...

    Text Solution

    |

  5. The standard enthalpies fo formation of CO(2) (g), H(2) O (1), and glu...

    Text Solution

    |

  6. The heats of combustion of carbon and carbon monoxide are -393.5and-28...

    Text Solution

    |

  7. Given C(("graphite"))+O(2)(g)toCO(2)(g), Delta(r)H^(0)=-393.5kJ" "mo...

    Text Solution

    |

  8. The bond energy of an O -H bond is 109 K. cal "mole"^(-1). When a mole...

    Text Solution

    |

  9. If the bond dissociation energies of XY,X(2) and Y(2)( all diatomic mo...

    Text Solution

    |

  10. For the reaction: 2H(2)(g) +O(2)(g) rarr 2H(2)O(g), DeltaH =- 571 kJ...

    Text Solution

    |

  11. Formation of ozone takes place as O(2)(g) + O(g) rarr O(3)(g) , DeltaH...

    Text Solution

    |

  12. Calculate the standard enthalpy change (in kJ "mol"^(-1)) for the reac...

    Text Solution

    |

  13. Enthalpy change for the reaction, 4H((g))rarr 2H(2(g)) is -869.6 kJ ...

    Text Solution

    |

  14. Using the data provided, calculate the multiple bond energy (kJ "mol"...

    Text Solution

    |

  15. The bond dissociation energies ofX(2),Y(2)andXY are in the ratio of1:0...

    Text Solution

    |

  16. For the reaction 2H(g)rarr H(2)(g), the sign of DeltaH and DeltaS resp...

    Text Solution

    |

  17. The entropy change involved in the isothermal reversible expansion of ...

    Text Solution

    |

  18. If water kept in an insultated vessel at - 10^(@)C suddenly freezes, ...

    Text Solution

    |

  19. The direct conversion of A to B is difficult. Hence it is carried out ...

    Text Solution

    |

  20. Given an idealgas is expanded adiabatically and irreversibley form vol...

    Text Solution

    |