Home
Class 12
CHEMISTRY
State the condition at which DeltaH=Delt...

State the condition at which `DeltaH=DeltaU`. For which reactions-(i) `DeltaHgtDeltaU`
(ii) `DeltaH lt DeltaU` ?

Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise Numerical Problems|47 Videos
  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise Practice Set 6|15 Videos
  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise SHORT TYPE QUESTIONS|37 Videos
  • CHEMICAL KINETICS

    CHHAYA PUBLICATION|Exercise EXERCISE (NUMERICAL PROBLEMS)|37 Videos
  • CHEMISTRY IN EVERYDAY LIFE

    CHHAYA PUBLICATION|Exercise PRACTICE SET 15|15 Videos

Similar Questions

Explore conceptually related problems

For which change DeltaH ne DeltaU ?

If the value of DeltaH and DeltaS are of following type, then at what condition a reaction will occur spontaneously? (i) DeltaH gt0 and DeltaSgt0 (ii) DeltaH lt0 and DeltaS gt0

Give an example of a reaction for each of the following relations between DeltaH and DeltaU : (i) DeltaU lt DeltaH (ii) DeltaU gt DeltaH (iii) DeltaU=DeltaH .

For which of the following chemical equation has DeltaH=DeltaU-

Give example of a reaction where DeltaH = DeltaU .

Under what conditions are (i) DeltaU=q_(V)& (ii) DeltaH=q_(P) ?

Give the relation between DeltaU and DeltaH .

Under which of the following conditions a reaction will occur spontaneously? (i) DeltaH lt0 and DeltaS lt0 (ii) DeltaH gt0 and DeltaS lt0 .

Predict the feasibility of a reaction when i) both DeltaH and DeltaS increase ii) both DeltaH and DeltaS decrease iii) DeltaH decreases but DeltaS increases

CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-LONG TYPE QUESTIONS
  1. Explain with examples: (i) enthalpy of a system is an extensive proper...

    Text Solution

    |

  2. (i) 1 mol of an ideal gas expands isothermally and reversible from (P(...

    Text Solution

    |

  3. State the condition at which DeltaH=DeltaU. For which reactions-(i) De...

    Text Solution

    |

  4. (i) What do you mean by standard enthalpy of formation? (ii) Is the ...

    Text Solution

    |

  5. What do you mean by enthalpy of fusion? Explain it with example. What ...

    Text Solution

    |

  6. What is enthalpy of vaporisation? Explain it with example. What is its...

    Text Solution

    |

  7. Give definition with example: (i) integral heat of solution (ii) heat ...

    Text Solution

    |

  8. The lattice enthalpy of an ionic compound MX is DeltaH(L) and the tota...

    Text Solution

    |

  9. (i) According to Hess's law it is possible to determine the enthalpy o...

    Text Solution

    |

  10. (i) What are bond energy and bond dissociation energy? (ii) Why aver...

    Text Solution

    |

  11. (i) What is the difference betweenn the enthalpy of formation and the ...

    Text Solution

    |

  12. What do you mean by heat of reaction or enthalpy of reaction? What are...

    Text Solution

    |

  13. (i) What do you mean by heat of reaction at constannt volume and heat ...

    Text Solution

    |

  14. (i) Show that heat of reaction at constant volume is equal to the chan...

    Text Solution

    |

  15. (i) State annd explain with example the Hess's law of constant heat su...

    Text Solution

    |

  16. Define: (i) Heat of combustion, (ii) Heat of formation, (iii) Heat of ...

    Text Solution

    |

  17. Give reason for the necessity of second law of thermodynamics.

    Text Solution

    |

  18. Write down the Clausius and Planck-Kelvin statement of the second law ...

    Text Solution

    |

  19. Define entropy from molecular point of view. At a particular temperatu...

    Text Solution

    |

  20. What do you mean by entropy of fusion and entropy of vaporisation? Giv...

    Text Solution

    |