Home
Class 12
CHEMISTRY
Why molecularity is applicable only for ...

Why molecularity is applicable only for elementary reactions and order is applicable for elementary as well as complex reactions?

Text Solution

Verified by Experts

A complex reaction takes place through a number of elementary reactions. Each elementary reaction may have different molecularity. Therefore, it is meaningless to talk of molecularity lof the overall complex reaction. On the other hand, order of reaction depends upon the molecularity of the slowest step. Hence, it is not meaningless to talk of the order of a complex reaction.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    PRADEEP|Exercise NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTTIONS (MATCHING TYPE QUESTIONS)|3 Videos

  • CHEMICAL KINETICS

    PRADEEP|Exercise NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTTIONS (ASSERTION AND REASON TYPE QUESTIONS)|1 Videos

  • CHEMICAL KINETICS

    PRADEEP|Exercise NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTTIONS (MULTIPLE CHOICE QUESTIONS-II)|12 Videos

  • BIOMOLECULES

    PRADEEP|Exercise IMPORTANT QUESTIONS (FOR BOARD EXAMINATION)|25 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    PRADEEP|Exercise IMPORTANT QUESTION FOR BOARD EXAMINATION|30 Videos

Similar Questions

Explore conceptually related problems

Molecularity of an elementary reaction

Molecularity of an elementary reaction can be ______.

The molecularity of an elementary reaction X + 2Y to Products is

What is meant by elementary step in a reaction?

The unit of rate constant of elementary reaction depends upon the

Molecularity of the following elementary reactions 2NO + O_(2) to 2NO_(2)

Which of the following os true for an elementary reaction ?

PRADEEP-CHEMICAL KINETICS-NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTTIONS (SHORT ANSWER QUESTIONS)
  1. State a condition under which a bimolecular reaction is kinetica...

    Text Solution

    |

  2. Write the rate equation for the reaction 2" A"+" B"to"C" if the order ...

    Text Solution

    |

  3. How can you determine the rate law of the following reactions? 2NO(g...

    Text Solution

    |

  4. For which type of reactions, order and molecularity have the same valu...

    Text Solution

    |

  5. In a reaction if the concentration of reactant A is tripled, the rate ...

    Text Solution

    |

  6. Derive an expression to calculate time required for completion of zero...

    Text Solution

    |

  7. For a reaction A+ B to Products, the rate law is -Rate = k[A][B]^(3...

    Text Solution

    |

  8. For a certain reaction a large fraction of molecules has energy more t...

    Text Solution

    |

  9. For a zero order reaction will the molecularity be equal to zero ?...

    Text Solution

    |

  10. For a general reaction AtoB, plot of concentration of A vs time is giv...

    Text Solution

    |

  11. The reaction between H(2)(g) and O(2) (g) is highly feasible, yet allo...

    Text Solution

    |

  12.  Why does the rate of a reaction increase with rise in temperature?

    Text Solution

    |

  13. Oxygen is available in plenty in air yet fuels do not burn by themselv...

    Text Solution

    |

  14. Why is the probablity of reaction with molecularity higher than three ...

    Text Solution

    |

  15. Why does the rate of any reaction generally decreases during the cours...

    Text Solution

    |

  16. Thermodynamic feasibility of the reaction alone cannot decide the rate...

    Text Solution

    |

  17. Why in the redox titration of KMnO(4) vs oxalic acid, we heat oxalic a...

    Text Solution

    |

  18. Why can't molecularity of any reaction be equal to zero?

    Text Solution

    |

  19. Why molecularity is applicable only for elementary reactions and order...

    Text Solution

    |

  20. Why can we not determine the order of a rection by taking into ...

    Text Solution

    |