Home
Class 12
CHEMISTRY
(i) According to Hess's law it is possib...

(i) According to Hess's law it is possible to determine the enthalpy of formation of a substance which cannot be measured directly-explain.
(ii) What do you mean by heat of transition?

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

(i) What is the difference betweenn the enthalpy of formation and the enthalpy of reaction? Explain with proper explain. (ii) what do you understand by the standard state of liquid benzene at 25^(@)C ?

What do you mean by heat of reaction or enthalpy of reaction? What are the factors on which heat of reaction depends?

What do you mean by enthalpy of fusion? Explain it with example. What is its significance?

(i) What do you mean by standard enthalpy of formation? (ii) Is the standard enthalpy of reaction of the following reaction equal to the standard enthalpy off formation of H_(2)O(l) at 25^(@)C:H_(2)(g)+(1)/(3)O_(3)(g)toH_(2)O(l) ? Explain.

(i) What do you mean by heat of reaction at constannt volume and heat of reaction at constant pressure? (ii) Establish the relation DeltaH=DeltaU=DeltanRT for a chemical reaction in gaseous state.

What do you mean by an extremum of a single - valued function State the condition for which f(x) possesses an extremum at x = c . Under what codition the extremum is a (i) maximum , (ii) minimum ?

CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-LONG TYPE QUESTIONS
  1. Give definition with example: (i) integral heat of solution (ii) heat ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  15. What is the physical significance of entropy ? Write the second law of...

    Text Solution

    |

  16. Show that in a process at constant temperature and pressure, the Gibbs...

    Text Solution

    |

  17. (i) What is the relation between Gibbs free energy change and spontane...

    Text Solution

    |

  18. If the value of DeltaH and DeltaS are of following type, then at what ...

    Text Solution

    |

  19. Under which of the following conditions a reaction will occur spontane...

    Text Solution

    |

  20. How does the spontaneity of an endothermic reaction depend on temperat...

    Text Solution

    |