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A reactant (A) forms two products A over...

A reactant (A) forms two products `A overset(K_(1)) to B`, Activation energy `E_(a1)A overset(K_(1)) to C` , Activation energy `E_(a2)` If `E_(a1) = 2E_(a2)` , then `K_(1)` and `K_(2)` are related as

A

`K_(1) = 2K_(2)e^(K_(a2)//RT)`

B

`K_(1) = K_(2)e^(K_(a1)//RT)`

C

`K_(2) = K_(1)e^(E_(a2)//RT)`

D

`(dC)/(dt) = K[A][B]^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B

By based on arrhenius equation
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A reactant (A) forms two products A overset (k_(1))rarr B , Activation energy E_(a1) A overset (k_(2))rarr C , Activation energy E_(a2) If E_(a_(2)) = 2E_(a_(1)) then k_(1) and k_(2) are related as

2A rarr B+C The mechanism of the above reaction given as 2A overset(K_(1))underset(K_(2))hArrX+2B (fast) X+B overset(K_(3))rarrC (slow) E_(1) = Activation energy for K_(1) K_(2) = Activation energy for K_(2) E_(3) =Activation energy for K_(3) Calculate E_("reaction") (given : E_(1) =10 kJ, E_(3)=5 kJ, E_(2) =12 kJ)

NARAYNA-CHEMICAL KINETICS -EXERCISE -4
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  2. Rate law for the reaction, A + 2B to C is found to be Rate = k [A] [...

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  3. Which of the following statements is incorrect about the collison theo...

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  4. A first order reaction is 50% completed in 1.26 xx 10^(14)s. How much ...

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  5. Which of the following statements is not correct for the catalyst?

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  6. The value of rate constant of a pseudo first order reaction

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  7. Consider the reaction A to B. The concentration of both the reactan...

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  8. The time for half-life period of a certain reaction, A rarr products i...

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  9. The rate of a chemical reaction doubles for every 10^(@)C rise of temp...

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  10. A reactant (A) forms two products A overset(K(1)) to B, Activation en...

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  11. For a reaction 1//2A to 2B, rate of disappearance of A is related to t...

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  12. For the reaction A + 2B + CtoD+2E the rate equation is rate =K[A][B]^(...

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  13. The acid hydrolysis of ester is: (i) first order reaction (ii) bimolec...

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  14. Which of the following statements are correct: (i) law of mass action ...

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  15. Consider the following reactions at 300 K. A rarr B (uncatalysed rea...

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  16. A substan ce undergoes first order decomposition. The decomposition fo...

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  17. The rate of the reaction between haemoglobin (Hb) and carbon monoxide ...

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  18. Consider following (1) and (2): The order of reaction and the val...

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  19. Graph between log k and 1/T is a straight line with OX =5, tan theta 1...

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  20. In a first order reaction the concentration of product ’x’ at time 't'...

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