Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Chemical Kinetics – General · Exam: NET JUNE 2012 · Marks: 2 · Difficulty: Hard
The carbon-14 activity of an old wood sample is found to be 14.2 disintegrations $\min ^{-1} \mathrm{g}^{-1}$.Calculate age of old wood sample, if for a fresh wood sample carbon-14 activity is 15.3 disintegrations $\mathrm{min}^{-1} \mathrm{g}^{-1}$ ($\mathrm{t}_{1 / 2}$ carbon-14 is 5730 years), is:
(a)5,000 years
(b)4,000 years
(c)877 years
(d)617 years
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.