Home
Class 12
CHEMISTRY
Reactions with very low activation energ...

Reactions with very low activation energies are generally

A

very slow

B

very fast

C

exothermic

D

endothermic

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    MODERN PUBLICATION|Exercise EXERCISE|531 Videos
  • BIOMOLECULES

    MODERN PUBLICATION|Exercise EXERCISE|503 Videos
  • CHEMISTRY IN EVERYDAY LIFE

    MODERN PUBLICATION|Exercise EXERCISE|352 Videos

Similar Questions

Explore conceptually related problems

The chemical reactions in which the reactants require high amount of activation energy are generally

Explain the concept of activation energy.

Enzymes are biocatalysts. They catalyse biochemical reactions. In general they reduce activation energy of reactions. Many physico-chemical processess are enzyme mediate. Some examples of enzyme mediated reactions are given below. Tick the wrong entry:

Define threshold energy and activation energy. How are they related?

Which graph shows zero activation energy ?

Define activation energy of a reaction.

The activation energy of reaction is equal to

MODERN PUBLICATION-CHEMICAL KINETICS-EXERCISE
  1. A first order reaction has a half life period of 34.65 seconds. Its ra...

    Text Solution

    |

  2. If a graph is plotted between Iog k and 1/T the slope of the straight...

    Text Solution

    |

  3. Reactions with very low activation energies are generally

    Text Solution

    |

  4. Which of the following does not influence the reaction rate?

    Text Solution

    |

  5. Unit of rate constant for zero order reaction is

    Text Solution

    |

  6. A catalyst :

    Text Solution

    |

  7. What is the unit of rate constant for second order reaction ?

    Text Solution

    |

  8. The value of k for a reaction is 2.96xx10^(30)s^-1 , what is the order...

    Text Solution

    |

  9. A reaction was found to be of second order with respect to concentrati...

    Text Solution

    |

  10. What is the unit of rate of reaction ?

    Text Solution

    |

  11. Half life period of a first order reaction is :

    Text Solution

    |

  12. Calculate the half-life of a first order reaction from its rate consta...

    Text Solution

    |

  13. The change in any one of the reactants or products per unit time is ca...

    Text Solution

    |

  14. The rate of a reaction is 1.209 xx10^-4L^2 mol^-2 s^-1. The order of t...

    Text Solution

    |

  15. A larger increase in reaction rate with small rise in temperature is d...

    Text Solution

    |

  16. Discuss the various factors affecting the rates of chemical reactions.

    Text Solution

    |

  17. What is meant by order of a chemical reaction ? The reaction : 2NO2 + ...

    Text Solution

    |

  18. What is meant by order of a chemical reaction ? The reaction : 2NO2 +...

    Text Solution

    |

  19. What is meant by order of a chemical reaction ? The reaction : 2NO2 +...

    Text Solution

    |

  20. Explain with examples the meaning of the terms average rate and instan...

    Text Solution

    |