Home
Class 12
CHEMISTRY
{:[(H(2)(g)+(1)/(2)O(2)(g)=H(2)O(g),Delt...

`{:[(H_(2)(g)+(1)/(2)O_(2)(g)=H_(2)O(g),DeltaH=-241.8kJ),(C_(2)H_(2)(g)+2(1)/(2)O_(2)(g)=2CO_(2)(g)+H_(2)O(g),DeltaH=-1300 kJ):}]`
Equal volumes of `C_(2)H_(2)` and `H_(2)` are combusted under identical conditions. The ratio of heats evolved in the two cases is

A

`5.37//1`

B

`1//5.37`

C

`1//1`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    RC MUKHERJEE|Exercise Problems|48 Videos

  • CHEMICAL KINETICS

    RC MUKHERJEE|Exercise OBJECTIVE PROBLEMS |51 Videos

  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    RC MUKHERJEE|Exercise Objective problems|36 Videos

Similar Questions

Explore conceptually related problems

H_(2)(g)+(1)/(2)O_(2)(g)rarr2H_(2)O(l), DeltaH =- 286 kJ 2H_(2)(g)+O_(2)(g)rarr2H_(2)O(l)……………kJ(+-?)

H_(2)O(g)+(1)/(2)O_(2)(g)toH_(2)O(g)," "DeltaH=x H_(2)(g)+(1)/(2)O_(2)(g)toH_(2)O(l)," "DeltaH=y heat of vaporization of water is:

C_(4)H_(10)+(13)/(2)O_(2)(g)rarr4CO_(2)(g)+5H_(2)O(l), DeltaH =- 2878 kJ DeltaH is the heat of……….of butane gas.

Given that: 2C(s)+O_(2)(g)to2CO_(2)(g)" "(DeltaH=-787kJ) . . . (i) H_(2)(g)+1//2O_(2)(g)toH_(2)O(l)" "(DeltaH=-286kJ) . . . (ii) C_(2)H_(2)+2(1)/(2)O_(2)(g)to2CO_(2)(g)+H_(2)O(l)" "(DeltaH=-1310kJ) . . .(iii) The heat of formation of acetylene is:

RC MUKHERJEE-CHEMICAL THERMODYNAMICS-Objective problems
  1. When a certain amount of ethylene was combusted, 6226 kJ heat was evol...

    Text Solution

    |

  2. {:[(H(2)(g)+(1)/(2)O(2)(g)=H(2)O(g),DeltaH=-241.8kJ),(CO(g)+(1)/(2)O(2...

    Text Solution

    |

  3. {:[(H(2)(g)+(1)/(2)O(2)(g)=H(2)O(g),DeltaH=-241.8kJ),(C(2)H(2)(g)+2(1)...

    Text Solution

    |

  4. Heat of neutralisation of a strong dibasic acid in dilute solution by ...

    Text Solution

    |

  5. The temperature of a 5mL of strong acid increases by 5^(@) when 5 mL o...

    Text Solution

    |

  6. Heat of neutralisation of a strong acid by a strong base is equal to D...

    Text Solution

    |

  7. In which case of mixing of a strong acid and a base each of 1N concent...

    Text Solution

    |

  8. The heat of neutralisation of HCl by NaOH is -55.9 kJ//"mole". If the ...

    Text Solution

    |

  9. The dissociation energy of CH(4) and C(2)H(6) are respectively 360 and...

    Text Solution

    |

  10. In which of the following cases entropy decreases?

    Text Solution

    |

  11. In which of the following reactions DeltaS is positive?

    Text Solution

    |

  12. The Delta G in the process of melting of Ice at -15^(@) C is

    Text Solution

    |

  13. In a reaction , DeltaH and DeltaS both are more than zeron. In which o...

    Text Solution

    |

  14. In which case is a reaction possible at any temperature ?

    Text Solution

    |

  15. In which case is a reaction impossible at any temperature ?

    Text Solution

    |

  16. The difference between the heats of reaction at constant pressure and ...

    Text Solution

    |

  17. Molar heat capacity of water in equilibrium with ice at constant press...

    Text Solution

    |

  18. Standard molar enthalpy of formation of CO(2) is equal to :

    Text Solution

    |

  19. When steam condenses to water at 90^(@)C, the entropy of the system de...

    Text Solution

    |

  20. A certain reaction is spontaneous at 85^(@)C . The reaction is endothe...

    Text Solution

    |