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Which of the following represent the exp...

Which of the following represent the expression for `(3)/(4)`th life of first order reaction

A

`(k)/(2.303)log 4 // 3`

B

`(2.303)/(k)log 3 // 4`

C

`(2.303)/(k)log 4`

D

`(2.303)/(k)log 3`

Text Solution

Verified by Experts

The correct Answer is:
C
`t_(1 // 4)=(1)/(k)In(100)/((1)/(4) xx 100)`
`=t_(3 // 4)=(2.303)/(k)log""(1)/((1)/(4) xx 1)`
`implies (2.303)/(k)log y`
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DISHA PUBLICATION-CHEMICAL KINETICS -EXERCISE 1 : CONCEPT BUILDER (TOPICWISE) (TOPIC 2: Order of Reaction and Half Life Period)
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  2. 99% at a first order reaction was completed in 32 min. When will 99.9%...

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  4. A hypothetical reaction A(2) + B(2) rarr 2AB follows the mechanism as ...

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  5. The time taken for 90% of a first order reaction to be completed is a...

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  6. A substance 'A' decomposes by a first order reaction starting initial...

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  7. Half life of a first order reaction is 4s and the initial concentrati...

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  8. 3A to B+C, it would be a zero order reaction when

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  9. The reaction A toB follows first order reaction. The time taken for 0....

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  10. For a first-order reaction A rarr B the reaction rate at reactant conc...

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  11. For a reaction A + 2B rarr C, rate is given by R = K [A] [B]^(2). The ...

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  12. In a first order reaction, the concentration of the reactant, decrease...

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  13. In a reaction, when the concentration of reactant is increased two ti...

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  14. The rate constant of a first order reaction is 6.9xx10^(-3)s^(-1). How...

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  15. The plot that represents the zero order reaction is:

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  16. For a chemical reaction t(1 // 2) is 2.5 hours at room temperature. H...

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  17. Point out the wrong statement: For a first order reaction

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  18. For a reaction (d x)/(d t) = K[H^(+)]^(n). If pH of reaction medium ch...

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  19. Ethylene is produced by C(4)H(8) overset(Delta)to 2C(2)H(4)  The rat...

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  20. Which one of the following statements for the order of a reaction is i...

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