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29-11-2016
Chemistry

Answered

Carbon-14 has a half-life of 5720 years and this is a first order reaction. If a piece of wood has converted 75% of the carbon-14, how old is it?

A11440 years
B2345 years
C4750 years
D4290 years
E1430 years

Verified Answer :

29-11-2016

The answer will be the first option, i.e. 11440 years since the piece of wood has undergone two half lives

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