Home
Class 11
CHEMISTRY
When 2.74 g of Ba(s) reacts with O(2)(g)...

When 2.74 g of Ba(s) reacts with `O_(2)(g)` at 298K and 1 atm to from Ba(s),11,100J of heat is released . What is `DeltaH_(f)^(@)` for BaO(s)in `Kjxxmol^(-1)`?

A

556

B

221

C

`-221`

D

`-556`

Text Solution

Verified by Experts

The correct Answer is:
d
Promotional Banner

Topper's Solved these Questions

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise Subjective Type|69 Videos

Similar Questions

Explore conceptually related problems

The enthalpy change of which reaction corresponds to DeltaH_(f)^(@) "for"Na_(2)CO_(3)(s)298K?

For the reaction, 2A (s) + 2B (g)to C (g) + D(s) at 298K Delta U ^(@) =-10.5KJ and Delta S ^(@)=-44.10 JK^(-1) Calculate Delta G ^(@) for the reaction (in Joules).

The reaction: NH_(2)CN(s) +(3)/(2)O_(2)(g)rarr N_(2)(g) +CO_(2)(g) +H_(2)O(l) Was carried out in a bomb caloriemeter. The heat released was 743 kJ mol^(-1) . The value of DeltaH_(300K) for this reaction would be

Gaseous N_(2)O decomposes at 298 K and forms N_(2)(g) and O_(2)(g) .The DeltaH for the reaction at 1 atm pressure and 298 K is -163.15 kJ . What is the value of DeltaU for the decomposition of 200 g of N_(2)O under the same conditions?

For the combustion reaction at 298K 2Ag(s)+1//2O_(2)(g) rarr 2Ag_(2)O(s) Which of the following alternatives is correct?

GRB PUBLICATION-THERMODYNAMICS-All Questions
  1. The heat of a reaction is measured in a bomb calorimeter . This heat i...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. Determine DeltaH(rxn) for the reaction in KJ .mol^(-1) 2NH(3)(g)+(5)...

    Text Solution

    |

  5. Calculate Delta E when one mole of liuid is vaporized at its boiling p...

    Text Solution

    |

  6. Use the following data to calculate the molar enthalpy of combustion o...

    Text Solution

    |

  7. Determine the enthalpy change for the reaction of 5.00 g Fe(2)O(3)with...

    Text Solution

    |

  8. The energies of the bonds broken in a certain eaction arae greater th...

    Text Solution

    |

  9. What is the value of Delta s^(@) for the reaction below? Fe(2)O(3)(...

    Text Solution

    |

  10. Statement-1: Adiabatic free expansion of any subatance in a cosed syst...

    Text Solution

    |

  11. Statement-1: The heat absorbed during the adiabatic expansion of an a ...

    Text Solution

    |

  12. Consider a reaction : A(g)+2b(g)toC(g) DeltaH(300)^(@)=40KJ, Delta...

    Text Solution

    |

  13. Statement-1: The enthalpy of formation of H(2)O(l)is greater than of H...

    Text Solution

    |

  14. Statement -1: heat of neutralistion of perchoric acid ,HClO(4) with Na...

    Text Solution

    |

  15. Statement -1: When a gas at high pressure expands against vaccum, the...

    Text Solution

    |

  16. Statement -1 in the following reaction : C(s)+O(2)(g)to CO(2) (g), D...

    Text Solution

    |

  17. Staement -1: The heat absorbed during the isothermal expansion of an i...

    Text Solution

    |

  18. Staetement -1: The magniyude of the work involed in an isothermal expa...

    Text Solution

    |

  19. Statement -1: Entropy change in reversible adiabatic expansion of an i...

    Text Solution

    |

  20. Statement -1: The Standard free energy changes of all spontaneously oc...

    Text Solution

    |