Home
Class 12
CHEMISTRY
The reaction for which standard enthalpy...

The reaction for which standard enthalpy of combustion of reactant is eight times of the standard enthalpy of formation of its product is

A

`8C` (diamond)`+O_2(g) rarr 8CO_2(g)`

B

`4P_4(red)+20 O_2(g) rarr 8 P_2O_5(s)`

C

`P_4(White)+5O_2(g) rarr P_4O_10(s)`

D

`S_8(rhombic)+8O_2(g) rarr 8SO_2(g)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Choose the reaction, for which the standard enthalpy of reaction is equal to the standard enthalpy of formation:

Standard enthalpy of formation is non zero for

Since their discovery in 1985 , fullerenes have received the attention of many chemical researchers. In a recentrly reported data, the specific internal energy of combustion of crystalline C_(60) is found to be -36kJ g^(-1) at 298K . Compute the standard enthalpy of combustion and formation for the same. Standard enthalpy of combustion of graphite is -395kJ mol^(-1) . If the standard enthalpy of formation of diamond is +2kJ per mol of C- atom, which is more stable :C_(60) or diamond ?

Standard enthalpy of formation is zero for.

Find the value of Delta_(f) H^(@) for the reaction N_(2) O_(4) (g) + 3 CO(g) rarr N_(2) O (g) + 3 CO_(2) (g) Standard enthalpies of formation of CO(g), CI_(2) (g), N_(2) O (g) , and N_(2) O_(4) (g) are - 110, - 393, 81 , and 9.7 kJ mol^(-1) , respectively. Strategy : The standard enthalpy change of a reaction is equal to the sum of the standard molar enthalpie of formation of the products each miltiplied by its stiochiometric coefficient in the balanced equation, minus the corresponding sum of the standard molar enthalpies of formation of the reactants

AAKASH INSTITUTE-TEST 5-EXAMPLE
  1. If for a reaction A(s) rarr 2B(g), deltaU+ 1.2 kcal and deltaS=40 c...

    Text Solution

    |

  2. If the enthalpy of formation of H2O(l) is -x kJmol and enthalpy of ne...

    Text Solution

    |

  3. The reaction for which standard enthalpy of combustion of reactant is ...

    Text Solution

    |

  4. Which among the following is not an extensive property?

    Text Solution

    |

  5. Standard enthalpy of vaporization of water at 1 atm pressure and 100°C...

    Text Solution

    |

  6. Which among the following is a path function?

    Text Solution

    |

  7. Density of O3(g) at 2atm pressure and at 127°C is

    Text Solution

    |

  8. Condition in which a reaction can never be spontaneous, is

    Text Solution

    |

  9. pH of a strong acid solution is 2. What volume of water must be added ...

    Text Solution

    |

  10. pH of saturated solution of Al(OH)3 is 9. The solubility product (Ksp)...

    Text Solution

    |

  11. SO2 and He gases present in 2:1 molar ratio in a closed vessel are all...

    Text Solution

    |

  12. If degree of dissociation is 0.5 at equilibrium, then the equilibrium ...

    Text Solution

    |

  13. Which of the following set has DeltafH°=0?

    Text Solution

    |

  14. Equal moles of N2 ,H2 and NH3 are present in a container which are eff...

    Text Solution

    |

  15. pH of 0.05 aqueous solution of weak acid HA(Ka=4×10^(-4)) is

    Text Solution

    |

  16. For the reaction , N2H4+H2rightarrow2NH3, bond energies are given as :...

    Text Solution

    |

  17. Which of the following is an acidic buffer?

    Text Solution

    |

  18. Which of the following would cause forward shif in the given reaction?...

    Text Solution

    |

  19. The van der Waals equation for one mole of real gas st low pressure is

    Text Solution

    |

  20. Solubility of Al(OH)3 in decimolar KOH solution (K(sp) of Al(OH)3=1....

    Text Solution

    |