Home
Class 11
CHEMISTRY
The heat of combustion of sucrose C(12) ...

The heat of combustion of sucrose `C_(12) H_(22) O_(11)(s)` at constant volume is -1348.9 kcal `mol^(-1)` at `25^(@)C`, then the heat of reaction at constant pressure, when steam is producced, is

A

`-1355.46 Kcal`

B

`+1355.46 Kcal`

C

`-1342.34 Kcal`

D

`+1342.344 cal`

Text Solution

Verified by Experts

The correct Answer is:
C
`C_(12)H_(22)O_(11(s))+12O_(2(g)) rarr 12 CO_(2(g))+11H_(2)O_((g))`
`DeltaH=DeltaU+Delta nRT`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NARAYNA|Exercise Level -III|64 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Level-IV|27 Videos

  • THERMODYNAMICS

    NARAYNA|Exercise Level -I (C.W)|62 Videos

  • STRUCTURE OF ATOM

    NARAYNA|Exercise EXERCISE - IV EXEMPLAR PROBLEMS|24 Videos

Similar Questions

Explore conceptually related problems

The oxidation number of C in sucrose (C_(12)H_(22)O_(11)) is

The heat of reaction for, C_(10)H_(8(s))+12O_(2(g)) rarr 10CO_(2(g))+4H_(2)O_((l)) at constant volume is -1228.2 kcal at 25^(@)C . Calculate the heat of reaction at constant pressure at 25^(@)C .

Which is true for the combustion of sucrose (C_(12)H_(22)O_(11)) at 25^(@)C :-

NARAYNA-THERMODYNAMICS-Level -II (C.W)
  1. The stadard heats of formation of NO(2)(g) and N(2)O(4) (g) are 33.5 a...

    Text Solution

    |

  2. The enthalpies of formation of CO(2(g)), H(2)O((l)) and C(2)H(4(g)) ar...

    Text Solution

    |

  3. If H(2)S+3/2 O(2) rarr H(2)O+SO(2), DeltaH=-136.7 Kcal H(2)+1/2 O(...

    Text Solution

    |

  4. A+3/2 O(2) rarr AO(3) = 3x KJ AO(2)+1/2 O(2) rarr AO(3) = 2y kJ Th...

    Text Solution

    |

  5. The enthalpy change during the formation of 24.95 grams of hydrated co...

    Text Solution

    |

  6. The molar enthalpies of combustion of C(2)H(2)(g), C("graphite") and H...

    Text Solution

    |

  7. For a given reaction, C(7)H(8(l))+9I(2) (g) rarr 7CO(2)(g) +4H(2)O(l...

    Text Solution

    |

  8. Hess's law states that

    Text Solution

    |

  9. Heat of reaction (DeltaH) is given by

    Text Solution

    |

  10. The values of the combustion of graphite and H(2) are -395 and -269 kJ...

    Text Solution

    |

  11. The heat of combustion of sucrose C(12) H(22) O(11)(s) at constant vol...

    Text Solution

    |

  12. At 298 K, the heat of solution of MgSO(4) (s) is -91.21 kJ mol^(-1) an...

    Text Solution

    |

  13. The entropy change for cooling 1.6 g of an organic compound (mol. Wt. ...

    Text Solution

    |

  14. The entropy change during heating of 50 g water (sp. Heat =4200 J kg^(...

    Text Solution

    |

  15. Standard molar entropies of Mg((s)), C((s)), MgO((s)) & CO((g)) respec...

    Text Solution

    |

  16. The value DeltaS for the process H(2)O(s) rarr H(2)O(l) at 1 atm pre...

    Text Solution

    |

  17. On the basis of information available from the reaction (4)/(3)Al+O(...

    Text Solution

    |

  18. Consider the following reactions at 1000^(@)C. (A) Zn((s))+1/2 O(2(g...

    Text Solution

    |

  19. Acetic acid forms dimer in vapour phase. The dimer is held together by...

    Text Solution

    |

  20. The temperature in K at which DeltaG=0 for a given reaction with Delta...

    Text Solution

    |