Home
Class 12
CHEMISTRY
Plots showing the variation of the rate ...

Plots showing the variation of the rate constant `(k)` with temperature `(T)` are given below. The plot that follows the Arrhenius equation is

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A

`k=Ae^(-Ea//RT)=A/(""_eE_a//RT)` Thus, as T decreases, the exponential factor in the denominator decreases or `Ad^(-E_(a)//RT)` increases. Hence, k increases explonentially as T increases.
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    PRADEEP|Exercise COMPETITION FOCUS (JEE(Main and Advanced)/Medical Entrance) (II. Multiple Choice Questions)|1 Videos
  • CHEMICAL KINETICS

    PRADEEP|Exercise COMPETITION FOCUS (JEE(Main and Advanced)/Medical Entrance) (I. Multiple Choice Questions) With one or more than one correct answers|7 Videos
  • CHEMICAL KINETICS

    PRADEEP|Exercise VALUE BASED QUESTIONS (WITH ANSWERS)|2 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

Which of the following graph is incorrect for variation of rate constant (K) with temperature for a reaction obeying Arrhenius equation ?

Accroding to Arrhenius equation, the rate constnat (k) is related to temperature (T)as

The variation of rate constant with temperature can be explained by Arrhenius equation. However , the can be explained by Activation energy is found to be temperature dependent/In such cases (d "in" K)/(dT)=(E_(a))/(RT^(2)) should be used to predict variation of rate constant with tempreature. On the basic of this information , answer the question that follow : If Arrhenius constant and E_(a) (activation energy0 are assumed to be constant then which of the following graph will be correct

Which one of the following given graphs represents the variation of rate constant (k) with temperature (t) for an endothermic reaction ?

Which one of the following given graphs represents the variation of rate constant (k) with temperature (f) for an endothermic reaction ?

The variation of rate constant with temperature is given by the integrated from of the Arrhenius equation, log_10k = (-Ea)/(2.303 RT) + constant where k = rate cosntant and Ea is the experimental activation energy. If for a certain reaction, log_10k = (-3163.0)/T + 11.899 , calculate Ea.

The variation of rate constant with temperature can be explained by Arrhenius equation. However , the can be explained by Activation energy is found to be temperature dependent/In such cases (d"in"K)/(dT)=(E_(a))/(RT^(2)) should be used to predict variation of rate constant with tempreature. On the basic of this information , answer the question that follow : If for a reaction in K=20-(20)/(T)+3 in T then E_(a) at 300 K will be

Draw a plot showing the variation of power of a lens with the wavelength of incident light.

PRADEEP-CHEMICAL KINETICS-COMPETITION FOCUS (JEE(Main and Advanced)/Medical Entrance) (I. Multiple Choice Questions)
  1. The rate of a reaction doubles when its temperature changes form 300 K...

    Text Solution

    |

  2. The rate constant of a first orrder reaction becomes six times when th...

    Text Solution

    |

  3. A reactant (A) forms two products A overset (k(1))rarr B, Activation...

    Text Solution

    |

  4. In the presence of catalyst, the activation energy of the reaction is ...

    Text Solution

    |

  5. The rate constant of a reaction at temperature 200 K is 10 times less ...

    Text Solution

    |

  6. The formation of H(2)O(2) in the upper atmosphere follows the mechanis...

    Text Solution

    |

  7. For an endothermic reaction, where Delta H represents the enthalpy of ...

    Text Solution

    |

  8. When a catalyst increases the rate of a chemical reaction, the rate co...

    Text Solution

    |

  9. An exothermic chemical reaction proceeds by two stages reactants over...

    Text Solution

    |

  10. For a reaction taking place in three steps, the rate consatnt are k(1)...

    Text Solution

    |

  11. The rate constant k(1) and k(2) for two different reactions are 10^(16...

    Text Solution

    |

  12. For a first order reaction ArarrP , the temperature (T) dependent rate...

    Text Solution

    |

  13. Plots showing the variation of the rate constant (k) with temperature ...

    Text Solution

    |

  14. The activation energy for a reaction at temperature T K was found to b...

    Text Solution

    |

  15. Two reactions R(2) and R(2) have identical pre - exponential factors. ...

    Text Solution

    |

  16. Which one of the following is not correct ?

    Text Solution

    |

  17. One mole of N(2)O(4)(g) at 300 K is kept in a closed container under o...

    Text Solution

    |

  18. Consider the following statements. i) Increase in concentration of r...

    Text Solution

    |

  19. The oxidation of certain metal is found to obey the equation A^(2) =al...

    Text Solution

    |

  20. The decomposition of phosphine [PH(3)] on tungsten at low pressure is ...

    Text Solution

    |