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If a is the initial concentration of a i...

If a is the initial concentration of a isubstance which reacts according to zero order kinetics and k is rate constant the time for the reaction to go to completion is :

A

k/a

B

ak

C

a/2k

D

a/k

Text Solution

Verified by Experts

The correct Answer is:
D
(D) `[A]_(t) = [A]_(0)-kt `
kt `=[A]_(0) "or " t = (a)/(k)`
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MODERN PUBLICATION-CHEMICAL KINETICS -Multiple Choice Questions ( Measuring Order of a Reaction : Integrated rate equation half life period )
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  2. If [A(0)] is the initial concentration and [A] is the concentration at...

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  3. If a is the initial concentration of a isubstance which reacts accordi...

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  4. The ration of the time required for 3/4 of the reaction and half of t...

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  5. For the half life period of a first order reaction which one of the fo...

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  6. The rate constant for a fist order reaction is k = 7xx10^(-4)s^(-1) .T...

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  7. The following rate date were obtained at 313 K for the reaction : 2A...

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  8. The half life period of a reaction is 100 min . In 400 min the intitia...

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  9. A radioactive substance is reduced to 1/8 of its original concentratio...

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  10. The rate for the first order reaction is 0.0069 mol L^(-1) min^(-1) an...

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  11. The half life period of the reaction : N(2) O(5) rarr 2NO(2) +(1)/(2...

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  12. If the initial concentration of reactants in a certain reaction is dou...

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  13. The conversion of A to B follows second order kinetics. Doubling the c...

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  14. For an nth order reaction the half life period t(1//2) is proportional...

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  15. The rate of a first order reaction is 1.5xx10^(-2) mol L^(-1) "min"^(-...

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  16. In a first order reaction ArarrB if k is rate constant and initial co...

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  17. The half life of a reaction is inversely proportionaly to the square o...

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  18. Half the period of a first order reaction is 1386 seconds . The specif...

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  19. The rate law for reaction between the substances A and B is given by :...

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  20. A reaction was found to be second order with respect to the concentrat...

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