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Q.

A first order reaction takes 1.26 x 10¹⁴ s for its 50% completion. How much time would it take for 100% completion?

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a

Infinite

b

$2 .52 \times 10^{28} s^{- 1}$

c

$3 .78 \times 10^{28} s^{- 1}$

d

$1 .26 \times 10^{28} s^{- 1}$

answer is D.

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Detailed Solution

Infinite time will be taken for the 100% completion.

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A first order reaction takes 1.26 x 1014 s for its 50% completion. How much time would it take for 100% completion?