Exercise 10 | Chemical Kinetics: Rate Laws
Sample of oak from an ancient site have a carbon-14 content equal to 85.0 % that in living matter.
Estimate the age of the wood knowing that t1/2 (14C) = 5730 years.
Radioactive decay is a first-order process:
ln = -kt and t1/2 =
⇒ ln = -
⇒ t = ln x = ln (100/85) x = 1340 years