Home
Class 11
CHEMISTRY
2 mol es of CO and 1 mol e of O(2) are a...

`2 mol es` of `CO` and `1 mol e` of `O_(2)` are allowed to react completely to form `CO_(2)` at `27^(@)C`. If the heat liberated during the course of reaction
`2CO+O_(2) rarr 2CO_(2)` at constant pressure is `560kJ`, the amount of heat liberated by carrying the reaction in one litre vessel will be `:(` Given `1 litre- atm=0.1kJ)`

A

`+535.37kJ`

B

`-557.537kJ`

C

`-58kJ`

D

`+57kJ`

Text Solution

Verified by Experts

The correct Answer is:
B
`:' PV=Nrt`
` P_(i)=3xx0.0821xx300=73.89atm.`
`P_9f)=2xx0.0821xx300=49.26atm.`
`:. DeltaPV=49.26xx1-73.89xx1`
`=-24.63litre atm.`
`=-2.463kJ` ltbr. Now, `DeltaH=DeltaU+DeltaPV`
`-560=DeltaU-2.463`
`DeltaU=-=-557.537kJ`
Promotional Banner

Topper's Solved these Questions

  • THERMOCHEMISTRY

    P BAHADUR|Exercise Exercise 3B objective problems|18 Videos

  • THERMOCHEMISTRY

    P BAHADUR|Exercise Exercise 4 objective Problems|21 Videos

  • THERMOCHEMISTRY

    P BAHADUR|Exercise Exercise 27|1 Videos

  • REDOX REACTIONS

    P BAHADUR|Exercise Exercise(8) Statement:Explanation type problems|19 Videos

  • THERMODYNAMICS

    P BAHADUR|Exercise Exercise|232 Videos

Similar Questions

Explore conceptually related problems

27 g C and 48 g O_2 are allowed to react completely to form CO and CO_2 .The weight ratio of CO and CO_2 formed, is :

Heat of reaction for, CO(g)+1//2O_(2)(g)rarr CO_(2)(g) at constant V is -67.71 K cal at 17^(@)C . The heat of reaction at constant P at 17^(@)C is :-

In a reaction, CO_(2(g)) +H_(2(g)) rarr CO_((g)) +H_(2)O_((g)), Delta H=+2.8 kJ at a constant pressure. The heat ofreactton at constant volume is

If Delta E is the heat of reaction for C_(2)H_(5)OH_((1))+3O_(2(g)) rarr 2CO_(2(g))+3H_(2)O_((1)) at constant volume, the Delta H (Heat of reaction at constant pressure) at constant temperature is

The heat of formation of CO_(2) is -393kj mol^(-1). The amount of heat evoled in the dormation of 0.156 kg of CO_(2) is

C+O_(2) rarr CO_(2), Delta H =-396 kJ mol^(-1) . Heat liberated in formation of 0.154 kg of CO_(2) is

For the real gases reaction 2CO(g)+O_(2)(g)rarr2CO_(2)(g) : DeltaH=-560kJ . In a 10 litre rigid vesel at 500K , the initial pressure is 70 bar and after the reaction it becomes 40 bar. The change in internal energy is:

In the combustion of 11 g of CO_(2(g)) , 100 kJ of heat is liberated. Heat of combustion of CO_(2(g)) is______ .

P BAHADUR-THERMOCHEMISTRY-Exercise 3a objective problems
  1. Heat of neutralisation of HF is :

    Text Solution

    |

  2. The heat of atomisation of PH(3(g)) is 228kcal mol^(-1) and that of P(...

    Text Solution

    |

  3. Given that : 2CO((g))+O(2(g))rarr2CO(2(g)),DeltaH^(@)=-P kJ C((s))...

    Text Solution

    |

  4. For which reaction DeltaH=DeltaU ?

    Text Solution

    |

  5. The enthalpy of hydrogenation of cyclohexene is -119.5kJ mol^(-1). If ...

    Text Solution

    |

  6. For which of the following reactions heat of formation (Delta(f)H) is ...

    Text Solution

    |

  7. For a hypothetical reaction , 3A rarr A(3) DeltaC(p) (i n J)=6.0+2.0...

    Text Solution

    |

  8. In a flask, colourless N(2)O(4) is in equilibrium with brown-coloured ...

    Text Solution

    |

  9. 1 mol e of ice melts at 0^(@)C and constant pressure of 1 atm by absor...

    Text Solution

    |

  10. Which of the following statement is wrong for C((graph ite))rarr C((d...

    Text Solution

    |

  11. 2 mol es of CO and 1 mol e of O(2) are allowed to react completely to ...

    Text Solution

    |

  12. One mole of a gas is allowed to expand freely in vacuum at 27^(@)C. Th...

    Text Solution

    |

  13. A system is provided 50xx10^(3)J energy and work done on the system is...

    Text Solution

    |

  14. A piston exering a pressure of one atm rests on the surface of water a...

    Text Solution

    |

  15. For a reaction DeltaC(p)=2.0+0.2T cal^(@)C and enthalpy of reaction at...

    Text Solution

    |

  16. The latent heat of vaporisation of liquid is 10kcal mol^(-1) at 1 atm ...

    Text Solution

    |

  17. One gram sample of NH(4)NO(3) is decomposed in a bomb calorimeter. The...

    Text Solution

    |

  18. Bond dissociation enthalpy of H(2),Cl(2) and HCl are 434,242 and 431kJ...

    Text Solution

    |

  19. The amount of heat released during the reaction of 300mL of 1M HCl wit...

    Text Solution

    |

  20. The change is entropy when 1 mol e of an ideal gas is compressed to 1/...

    Text Solution

    |