Home
Class 11
CHEMISTRY
In which of the following changes , Delt...

In which of the following changes , `DeltaH^(@)` is always negative `:`

A

enthalpy of solution

B

enthalpy of hydrogenation

C

enthaly of reaction

D

enthalpy of transition

Text Solution

Verified by Experts

The correct Answer is:
2

Enthalpy of hydrogenation is always exothermic.
`i.e. DeltaH^(@) lt O`.
Promotional Banner

Topper's Solved these Questions

  • STRUCTURAL IDENTIFICATION & PRACTICAL ORGANIC CHEMISTRY

    RESONANCE|Exercise Section -B|18 Videos

Similar Questions

Explore conceptually related problems

Which of the following defines DeltaH_(f)^@ ?

In which of the following, the DeltaH_(h)^(@) is maximum ?

Under which of the following sets of conditions, DeltaG is always negative?

In which of the following reactions, DeltaH gt DeltaU ?

For which of the following cases is DeltaS=DeltaH//T

RESONANCE-THERMODYNAMIC & THERMOCHEMISTRY-PHYSICAL CHEMITRY (THERMODYNAMIC & THERMOCHEMISTRY)
  1. S( rhombic ) + O(2) rarr SO(2)," " DeltaH=-297.5kJ S( monoclini...

    Text Solution

    |

  2. A system absorbs 300cal of heat , its volume doubles and temperature r...

    Text Solution

    |

  3. In which of the following changes , DeltaH^(@) is always negative :

    Text Solution

    |

  4. Calculate the enthalpy change when 50 mL of 0.01 M Ca(OH)(2) reacts wi...

    Text Solution

    |

  5. Calculate difference between DeltaH and DeltaU when 1 mole of grey tin...

    Text Solution

    |

  6. Temperature of 1mol of a gas is increased by 1^(@) at constant pressur...

    Text Solution

    |

  7. A sample of oxygen gas expands its volume from 3L to 5L against a cons...

    Text Solution

    |

  8. At 0^(@)C,DeltaH(fus)^(@)=6kJ //mol, change of entropy for freezing of...

    Text Solution

    |

  9. At 27^(@)C,N(2)O(4) has vapour density=(230)/(6). If the equilibrium p...

    Text Solution

    |

  10. DeltaS=(q(rev))/(T), so

    Text Solution

    |

  11. A 10g piece of iron ( C =0.45 J//g^(@)C ) at 100^(@)C is dropped into ...

    Text Solution

    |

  12. An ideal gas expand against a constant external pressure at 2.0 atmosp...

    Text Solution

    |

  13. For a closed container containing 100 mol of an ideal gas fitted with ...

    Text Solution

    |

  14. 10 mole of ideal gas expand isothermally and reversibly from a pressur...

    Text Solution

    |

  15. What is the final temperature of 0.10 mole monoatomic ideal gas that p...

    Text Solution

    |

  16. During an adiabatic process, the pressure of a gas is found to be prop...

    Text Solution

    |

  17. P-V plot for two gases ( assuming ideal ) during adiabatic processes ...

    Text Solution

    |

  18. Calculate the final temperature of a monoatomic ideal gas that is comp...

    Text Solution

    |

  19. Calculate average molar that capacity at constant volume of gaseous mi...

    Text Solution

    |

  20. Consider the reaction at 300K C(6)H(6)(l)+(15)/(2)O(2)(g)rarr 6CO(2)...

    Text Solution

    |