Chemistry - Carbon Dating Question?

2010-01-29 5:33 pm
Anthropologists can estimate the age of a bone or other organic matter by its carbon-14 content. The carbon-14 in a living organism is constant until the organism dies, after which carbon-14 decays with first-order kinetics and a half-life of 5730 years. Suppose a bone from an ancient human contains 19.5% of the C-14 found in living organisms
How old is the bone

回答 (2)

2010-01-29 5:49 pm
✔ 最佳答案
t1/2 = ln 2 / k
5730 = 0.693 / k
k = rate of reaction = 0.000121

ln 19.5/100 = - 0.000121 t

- 1.63 = - 0.000121 t

t = 13510 years
2010-01-29 5:46 pm
REAL old


收錄日期: 2021-04-20 20:12:15
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100129093328AAplRdE

檢視 Wayback Machine 備份