Home
Class 12
CHEMISTRY
A certain endothermic reaction: Ato Prod...

A certain endothermic reaction: `Ato` Product, `DeltaH=+ve` proceeds ina sequence of three elementary steps with the rate constant `K_(1),K_(2)` and `K_(3)` and each one having energy of activation `E_(1),E_(2)` and `E_(3)` respectively at `25^(@)C`. The observed rate constannt for the reaction is equal to `K_(3)sqrt((K_(1))/(K_(2)))`.
`A_(1),A_(2)` and `A_(3)` are Arrhenius parameters respectively.
The observed energy of activation for the reaction is

A

`(2E_(1)-E_(2)+2E_(3))/2`

B

`(E_(2)-E_(1)-2E_(3))/2`

C

`sqrt((E_(1)E_(3))/(E_(2)))`

D

`(E_(1)-E_(2))/2+E_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Here `K=K_(3)sqrt((K_(1))/(K_(2)))`……….1 `K_(1)=A_(1)e^(-E_(1)//RT),K_(2)=A_(2)e^(-E_(2)//RT),K_(3)=A_(3)e^(-E_(3)//RT)`…..2 from (1) (2)
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise LEVEL-II(LECTURE SHEET EXERCISE-III MATCH THE FOLLOWING QUESTIONS)|3 Videos

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise LEVEL-II(LECTURE SHEET EXERCISE-IV INTEGER ANSWER TYPE QUESTIONS)|10 Videos

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise LEVEL-II(LECTURE SHEET EXERCISE-I SINGLE & ONE OR MORE THAN ONE CORRECT ANSWER)|50 Videos

  • CHEMICAL KINETCS

    AAKASH SERIES|Exercise EXERCISE - 3.2|45 Videos

  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise Additional Practice Exercise|54 Videos

Similar Questions

Explore conceptually related problems

A certain endothermic reaction: Ato Product, DeltaH=+ve proceeds ina sequence of three elementary steps with the rate constant K_(1),K_(2) and K_(3) and each one having energy of activation E_(1),E_(2) and E_(3) respectively at 25^(@)C . The observed rate constannt for the reaction is equal to K_(3)sqrt((K_(1))/(K_(2))) . A_(1),A_(2) and A_(3) are Arrhenius parameters respectively. The observed Arrhebius parameter for the reaction is

A certain endothermic reaction: Ato Product, DeltaH=+ve proceeds ina sequence of three elementary steps with the rate constant K_(1),K_(2) and K_(3) and each one having energy of activation E_(1),E_(2) and E_(3) respectively at 25^(@)C . The observed rate constannt for the reaction is equal to K_(3)sqrt((K_(1))/(K_(2))) . A_(1),A_(2) and A_(3) are Arrhenius parameters respectively. Presence of a catalyst decreasesthe energy of activation of each path by half the value of E_(1) . Assuming the other factors same, the observed energy of activation would be

A certain endothermic reaction: Ato Product, DeltaH=+ve proceeds ina sequence of three elementary steps with the rate constant K_(1),K_(2) and K_(3) and each one having energy of activation E_(1),E_(2) and E_(3) respectively at 25^(@)C . The observed rate constannt for the reaction is equal to K_(3)sqrt((K_(1))/(K_(2))) . A_(1),A_(2) and A_(3) are Arrhenius parameters respectively. Which represents the correct value if catalyst is not present:

A certain endothermic reaction: Ato Product, DeltaH=+ve proceeds ina sequence of three elementary steps with the rate constant K_(1),K_(2) and K_(3) and each one having energy of activation E_(1),E_(2) and E_(3) respectively at 25^(@)C . The observed rate constannt for the reaction is equal to K_(3)sqrt((K_(1))/(K_(2))) . A_(1),A_(2) and A_(3) are Arrhenius parameters respectively. If temperature coefficient of the observed reactionis 2,the numerical value of E_(1)-E_(2)+2E_(3) is

A certain endothermic reaction: Ato Product, DeltaH=+ve proceeds ina sequence of three elementary steps with the rate constant K_(1),K_(2) and K_(3) and each one having energy of activation E_(1),E_(2) and E_(3) respectively at 25^(@)C . The observed rate constannt for the reaction is equal to K_(3)sqrt((K_(1))/(K_(2))) . A_(1),A_(2) and A_(3) are Arrhenius parameters respectively. For a reversible Aunderset(K_(2))overset(K_(1))(hArr)B,DeltaH=q if pre exponential factors are same. The correct relation is

For the reaction CO_((g)) + (1)/(2) O_(2(g)), K_(1)//K_(c) is

The rate constant K_(1) and K_(2) for two different reactions are are 10^(16)e^(-2000//T) and 10^(15)e^(-1000//T) , respectively. The temperature at which K_(1)=K_(2) is

The rate constants of a reaction at 300K and 280 K respectively are K_(1) and K_(2) . Then