Chemical Kinetics Question 324
Question: For a first order reaction, rate constant is $ 0.6932h{r^{-1}} $ , then half-life for the reaction is [Bihar MEE 1997]
Options:
A) $ 0.01hr $
B) $ 1hr $
C) $ 2hr $
D) $ 10hr $
E) $ 0.1hr $
Show Answer
Answer:
Correct Answer: B
Solution:
$ {t_{1/2}}=\frac{0.693}{k}=\frac{0.693}{0.6932h{r^{-1}}}=1hr $ .