Home
Class 12
CHEMISTRY
A catalyst decreases E(a) form 100 KJ mo...

A catalyst decreases `E_(a)` form `100 KJ mol^(-1)` to `80 KJ mol^(-1)` At what temperature the rate of reaction in the absence of catalyst at `500 K` will be equal to rate reaction in the presence of catalyst?

A

400 K

B

200 K

C

`"log"_(10)`A

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
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

Catalyst increses the rate of reaction

A catalyst increases the rate of reaction by :

A catalyst increases the rate of a reaction by:

A catalyst increase rate of reaction by :

(A) A catalyst increases the rate of areaction. (R)In presence of a catalyst, the activation energy of the reaction increases.

A catalyst decreases activation energy by 15 Kcal and it is observed that rate of reaction in absence of catalyst at 400K is same as rate of reaction in presence of catalyst at 300 K. The activation energy in absence of catalyst will be :

GRB PUBLICATION-CHEMICAL KINETICS-F. Effect of Temperature and Catalyst
  1. C(a) + CO(2)(g) rarr 2CO(g) " " DeltaH=172 KJ "mol"^(-1) In a sui...

    Text Solution

    |

  2. Which statement about eh behavior of a catalyst is correct?

    Text Solution

    |

  3. Which of the following are reasons why reaction rates increase at temp...

    Text Solution

    |

  4. What is the effect of adding a catalyst on the rate of a reversible re...

    Text Solution

    |

  5. For a reversible exothermic reaction , which is the effect of increasi...

    Text Solution

    |

  6. Select the incorrect statement.

    Text Solution

    |

  7. We can represent the decomposition of N(2)O(5)(g) at a fixed temperatu...

    Text Solution

    |

  8. For the equilibrium, A(g) rarr B(g) , DeltaH is -40 KJ/mol. If the...

    Text Solution

    |

  9. A reacation takes place in three steps with actiation energy E(a(1))=1...

    Text Solution

    |

  10. A catalyst decreases E(a) form 100 KJ mol^(-1) to 80 KJ mol^(-1) At wh...

    Text Solution

    |

  11. In Arrhenius equation K =Ae^(-E(a)//RT), as underset(Trarroo)"lim" "lo...

    Text Solution

    |

  12. The rates of which reactions are increased when the temperature s rais...

    Text Solution

    |

  13. This exothermic reaction is catalyzed by MnO(2)(s). 2H(2)O(2)(aq) ra...

    Text Solution

    |

  14. The rate of a reaction at 75^(@) C is 30.0 times that at 25^(@) C . W...

    Text Solution

    |

  15. The reaction A+B rarr AB has an enthalpy of reaction of -85.0 KJ-"mol"...

    Text Solution

    |

  16. Which equation indicates the presence of a catalyst in the reaction?

    Text Solution

    |

  17. When the temperature of a reaction is raised from 300 K to 310 K, the...

    Text Solution

    |

  18. A particular reaction rate increases by a a factor of five when the te...

    Text Solution

    |

  19. Rate of disappearance of the reactant A at two different temperature ...

    Text Solution

    |

  20. When 100 mL of 1.0 M HCl is added to a 2.0 g pieces of CaCo(3), CO(2)...

    Text Solution

    |