Home
Class 12
CHEMISTRY
A catalyst increase rate of reaction by ...

A catalyst increase rate of reaction by :

A

Decreasing enthalpy

B

Decreasing internal energy

C

Decreased activation energy

D

Increase activation energy

Text Solution

Verified by Experts

The correct Answer is:
C
Catalyst provides new path to the chemical reaction which has lower value of activation energy. Reactant and product with not be affected, so there will not be any change in state parameter like enthalpy and internal energy.
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    A2Z|Exercise Assertion-Reasoning Questions|6 Videos

  • SURFACE CHEMISTRY

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • SURFACE CHEMISTRY

    A2Z|Exercise Colloids (Properties, Coagulation, Protection, Emulsions And Applications)|30 Videos

  • SOLUTIONS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • THE D AND F BLOCK ELEMENTS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

A catalyst increases rate of reaction by

A catalyst increases the rate of reaction by :

Assertion : A catalyst increases the rate of reaction without itself undergoing any permanent chemical change. Reason : A catalyst changes the Gibbs energy (Delta G) of the reaction and equilibrium constant of the reaction.

(A) Positive catalyst increases the rate of reaction (R) Catalyst decrease the value of DeltaG^(@)

A : A positive catalyst increases the rate of reaction . R : A positive catalyst alters reaction mechanism and decreases activation energy.

Assertion (A) : Poistive catalysts increase the rate of reaction. Reason (R ): Catalysts decrease the value of DeltaG^(ɵ) .

A2Z-SURFACE CHEMISTRY-AIIMS Questions
  1. In the reactions 2SO(2) + O(2) underset(As(2)O(3))overset(Pt)(rarr) 2S...

    Text Solution

    |

  2. Which one is false in the following statement?

    Text Solution

    |

  3. A catalyst increase rate of reaction by :

    Text Solution

    |

  4. Which of the following types of metal form the most efficient catalyst...

    Text Solution

    |

  5. Formation of ammonia from H(2) and N(2) by Haber's process using Fe is...

    Text Solution

    |

  6. What is the role of a catalyst in a catalysed reaction

    Text Solution

    |

  7. the catalyst used in the contact process for manufacturing of sulphuri...

    Text Solution

    |

  8. The role of a catalyst in a reversible reaction is to

    Text Solution

    |

  9. Which of the following catalyses the conversion of glucose into ethan...

    Text Solution

    |

  10. Hydorlysis of ethyl acetate is catalysed by aqueous

    Text Solution

    |

  11. A catalyst

    Text Solution

    |

  12. Which of the following is used as a catalyst in the munfacture of tolu...

    Text Solution

    |

  13. Hydrolysis of ethyl acetate is catalysed by aqueous

    Text Solution

    |

  14. In the reversible reaction a catalyst is the substance which

    Text Solution

    |

  15. Which of the following is known as a Ziegler-Natta catalyst ?

    Text Solution

    |

  16. In the reversible reaction a catalyst is the substance which

    Text Solution

    |

  17. A catalyst is used to

    Text Solution

    |

  18. The transition metal used as a catalyst is

    Text Solution

    |

  19. Which of the following reaction is catalysed by enzyme maltase?

    Text Solution

    |

  20. The effieciency of an enzyme in catalysing a reaction is due to its ca...

    Text Solution

    |