Home
Class 11
CHEMISTRY
The enthalpies of combustion of carbon a...

The enthalpies of combustion of carbon and carbon monoxide are `-393.5` and `-282.5KJmol^(-1)` respectivaly. The enthalpy of formation of carbon monoxide per mole is:

A

`-110.5KJ`

B

`676.5KJ`

C

`-67h6.5KJ`

D

`110.5KJ`s

Text Solution

Verified by Experts

The correct Answer is:
A
`C+0_(2)rarrCO_(2),DeltaH=-393.5KJ`
`CO+1//2O_(2)rarrCO_(2),DeltaH=-283KJ`
`(- " "-" "-" "+)/(C+1//2O_(2)rarrCO,DeltaH=-110.5KJ)`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    A2Z|Exercise Entropy, Gibb'S Energy And Spontaneity Of Process|52 Videos

  • CHEMICAL THERMODYNAMICS

    A2Z|Exercise Heat Capacity And Calorimetry|13 Videos

  • CHEMICAL THERMODYNAMICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • CHEMICAL EQUILIBRIUM

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The enthalpies of combustion of carbon and carbond monoxide are -393.5 and -283kJ mol^(-1) respectively . The enthalpy of formation of carbond monoxide per mole is :

The enthalpies of combustion of carbon and carbon monoxide are -393.5 and -283 kJ mol^(-1) respectively. The enthaly of formation of carbon monoxide per mole is :

The heats of combustion of carbon and carbon monoxide are -393.5and-283.5kJmol^(-1) respectively. The heat of formation (in kJ) of carbon monoxide per mole is:

The enthalpies of combustion of carbon and carbon monoxide are -390 kJ mol^(-1) and -278 kJ mol^(-1) respectively. The enthalpy of formation of carbon monoxide is

A2Z-CHEMICAL THERMODYNAMICS-Work, Internal Energy And Enthalpy
  1. Given, H(2)(2)+Br(2)(g)rarr2HBr(g) , Deltah(1)^(@) and standerd enthal...

    Text Solution

    |

  2. The heat of combustion of yellow phoshphorus and red phosphorus are -9...

    Text Solution

    |

  3. The enthalpies of combustion of carbon and carbon monoxide are -393.5 ...

    Text Solution

    |

  4. The heat of formation of C(2)H(5)OH(l) is -66Kcal//mol . The heat of c...

    Text Solution

    |

  5. Given that C+O(2)rarrCO(2),DeltaH^(@)=-xKJ and 2CO+O(2)rarr2CO(2),Delt...

    Text Solution

    |

  6. Assuming that water vapour is an ideal gas, the internal energy change...

    Text Solution

    |

  7. Given that C+2SrarrCS(2)DeltaH^(@)f=+117.0KJmol^(-1) (1) C+O(2)rarrC...

    Text Solution

    |

  8. The enthaply at 298K of the reaction H(2)O(2)(l)rarr+(1)/(2)O(2)(g) ...

    Text Solution

    |

  9. Equal volumes of molar hydrochloric acid and subphuric acid are neutra...

    Text Solution

    |

  10. From the standard enthalpies of formation values for some compounds (i...

    Text Solution

    |

  11. Delta H(1)^(@) for CO(2)(g), CO(g) and H(2)O(g) are -393.5,-110.5 and ...

    Text Solution

    |

  12. Which of the following statements is correct about heat of combuustion...

    Text Solution

    |

  13. Given N(2)(g)+3H(2)(g)=2NH(3)(g),DeltaH^(@)=-22 kcal. The standard e...

    Text Solution

    |

  14. Smelting of iron ore takes place through this reaction 2FeO(3)(s)+3C...

    Text Solution

    |

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

    Text Solution

    |

  16. (1) For the given heat of reaciton, (i) C(s)+O(2)(g)=CO(2)(g)+97 kca...

    Text Solution

    |

  17. Given the reaction at 967^(@)C and 1 atm. CaCO(3)(s)hArrCaO(s)+CO(2)...

    Text Solution

    |

  18. Values of heats of formation for SiO(2) and MgO are -48.4 and -34.7 kJ...

    Text Solution

    |

  19. On the basis of the following thermochemical data : (Delta(f)G^(@)H((a...

    Text Solution

    |

  20. Given that 3C(s)+2Fe(2)O(3)(s)rarr4Fe(s)+3CO(2)(g), DeltaH^(@)=-93...

    Text Solution

    |