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

1.26 \times 10^{15} s

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2.52 \times 10^{14} s

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2.52 \times 10^{28} s

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Infinite

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Solution

The correct option is C Infinite
Time of 100% completion for a first order reaction is always infinite.
e.g Nuclear reaction.

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Similar questions

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

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

$(a) 1.26 \times 10^{15} s (b) 2.52 \times 10^{14} s (c) 2.52 \times 10^{28} s (d) I n f i n i t e$

50

1.26 \times 10^{14} s e c

100

50

69.3

90

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