Home
Class 12
CHEMISTRY
Change in enthalpy for reaction 2H(2)O(2...

Change in enthalpy for reaction `2H_(2)O_(2)(l)rarr2H_(2)O(l)+O_(2)(g)`
if heat of formation of `H_(2)O_(2)(l)` and `H_(2)O(l)` are `-188` and `-286KJ//mol` respectively is

A

`-196 kJ//mol`

B

`+196 kJ//mol`

C

`+948 kJ//mol`

D

`-948 kJ//mol`

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Change in entropy for reaction 2H_(2)O_(2)(l)rarr2H_(2)O(l)+O_(2)(g) if heat of formation of H_(2)O_(2)(l) and H_(2)O(l) are -188 and -286KJ//mol respectively is

The reaction 2H_2O(l)rarr2H_2(g)+O_2(g) is an example of

Calculate the enthalpy of the reaction SnO_(2)(s)+2H_(2)(g)toSn(s)+2H_(2)O(l) given that , bond enthalpies of formation of SnO_(2)(s) and H_(2)O(l) are -580.7 kJ and -285.8kJ respectively.

In the reaction 2H_(2)(g) + O_(2)(g) rarr 2H_(2)O (l), " "Delta H = - xkJ

The heat of formation of H_(2)O_((l)) is -286.2 kJ. The heat of formation of H_(2)O_((g)) is likely to be

Calculate the standard internal energy change for the following reactions at 25^(@)C : 2H_(2)O_(2)(l) rarr 2H_(2)O(l) +O_(2)(g) Delta_(f)H^(Theta) at 25^(@)C for H_(2)O_(2)(l) =- 188 kJ mol^(-1) H_(2)O(l) =- 286 kJ mol^(-1)

ALLEN-Thermodynamics And Thermo Chemistry-All Questions
  1. In an adiabatic expansion of an ideal gas -

    Text Solution

    |

  2. The heat of combustion of ethanol was determined in a bomb calorimeter...

    Text Solution

    |

  3. 4S(s)+60to4SO(3)(g),DeltaH f or this reaction is - 1583.2 kJ . The en...

    Text Solution

    |

  4. The heat change for the reaction C(s)+2S(s)toCS(2)(l) is called the...

    Text Solution

    |

  5. Based on the following thermochemical equations H(2)O(g)+C(s)rarrCO(...

    Text Solution

    |

  6. In the reversible reaction of the type A+B hArr AB, in general.

    Text Solution

    |

  7. If enthalpies of formation of C(2)H(4)(g)1,CO(2) andH(2)O(l) at25(@)C ...

    Text Solution

    |

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

    Text Solution

    |

  9. Identify the correct statement regarding entropy

    Text Solution

    |

  10. Change in enthalpy for reaction 2H(2)O(2)(l)rarr2H(2)O(l)+O(2)(g) if...

    Text Solution

    |

  11. When 1 mole of gas is heated at constant volume. Temperature is raised...

    Text Solution

    |

  12. For which one of the following equation is DeltaH(reaction)^(@) equal ...

    Text Solution

    |

  13. Internal energy of an ideal gas depends on :-

    Text Solution

    |

  14. The process in which no heat enters or leaves the system is termed as

    Text Solution

    |

  15. The work done during the expanision of a gas from a volume of 4 dm^(3)...

    Text Solution

    |

  16. Calculate the work done during isothermal reversible expansion expansi...

    Text Solution

    |

  17. (Delta H - Delta U) for the formation of carbon monoxide (CO) from its...

    Text Solution

    |

  18. Heat of formation of CO(2)(g),H(2)O(l)andCH(4)(g)"are"-94,-68.4 and-17...

    Text Solution

    |

  19. Change in internal energy when 4 kJ of work is done on the system and ...

    Text Solution

    |

  20. In a chemical reaction DeltaH is 150 kJ and DeltaS is 100 J K^(-1) at ...

    Text Solution

    |