Home
Class 12
CHEMISTRY
Catalyst in a chemical reaction :...

Catalyst in a chemical reaction :

A

increases the activation energy

B

does not change activation energy

C

does not change `DeltaH`

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    GRB PUBLICATION|Exercise Mechanism of Reactions|45 Videos

  • CHEMICAL KINETICS

    GRB PUBLICATION|Exercise compllcatio in first order reactions|17 Videos

  • CHEMICAL KINETICS

    GRB PUBLICATION|Exercise E. Methods to Monitor the Progress of Reaction|43 Videos

  • CHEMICAL BONDING-I

    GRB PUBLICATION|Exercise Subjective Type|120 Videos

  • COORDINATION COMPOUNDS

    GRB PUBLICATION|Exercise SBJECTIVE TYPE|98 Videos

Similar Questions

Explore conceptually related problems

The effect of a catalyst in chemical reaction is to change the

Explain the following observation: (i) Generally there is an increase in density of elements from titanium (Z=22) to copper (Z=29) in the first series of transition elements. (ii) Transition elements and their compounds are generally found to be catalysts in chemical reactions.

Which is a characteristic of catalyst used in a chemical reaction ?

GRB PUBLICATION-CHEMICAL KINETICS-F. Effect of Temperature and Catalyst
  1. Consider the Arrhenius equation given below and mark the correct op...

    Text Solution

    |

  2. An iron catalyst is used in the Haber process in which process N2 and ...

    Text Solution

    |

  3. Catalyst in a chemical reaction :

    Text Solution

    |

  4. All of the following are expected to affect the rate of an irreversibl...

    Text Solution

    |

  5. A catalyst speeds up a chemical reaction by :

    Text Solution

    |

  6. The activation energy ofr a reaction can be determined by measuring th...

    Text Solution

    |

  7. Most reactions occure more rapidly at high temperatures than at low te...

    Text Solution

    |

  8. Two unimolecular reactions, I and II have the same rate constant at 25...

    Text Solution

    |

  9. 2NO(g) +Cl(2)(g) rarr 2NOCl, DeltaH=-38 KJ If the activation energy ...

    Text Solution

    |

  10. A catalyst affects the rate of a chemical reaction by:

    Text Solution

    |

  11. Which of these factors affect the value of the rate constant for a rea...

    Text Solution

    |

  12. Which of the correct exponential form of the Arrhenius equations?

    Text Solution

    |

  13. The chemical in a lightsticks give off light as they react. When the l...

    Text Solution

    |

  14. The rate of the reaction of chorine gas with a liquid hydrocarbon can ...

    Text Solution

    |

  15. The effect of temperature on the rates of chemical reactions is primar...

    Text Solution

    |

  16. The value of the rate constant for a gas phase reacation can be change...

    Text Solution

    |

  17. The rate of a reaction at 100^(@) C is four times the rate at 50^(@) C...

    Text Solution

    |

  18. A reaction is endothermic with DeltaH=100 KJ/mol. If the activation en...

    Text Solution

    |

  19. Change in which factors affect both the rate and the rate constant of ...

    Text Solution

    |

  20. Consider the reaction, 2NO(g) + Cl(2) rarr 2NOCl. Which of the fol...

    Text Solution

    |