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Half life

A first order...

Question

A first order reaction is 50% completed in $1.26 \times 10^{14}$ s. How much time would it take for 100% completion?

A

$1.26 \times 10^{15} s$

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B

$2.52 \times 10^{14} s$

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C

$2.52 \times 10^{28} s$

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D

Infinite

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Solution

The correct option is D
Infinite

Conceptual

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A first order reaction is 50% completed in $1.26 \times 10^{14} s .$ How much time would it take for 100% completion ?

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