Chemical Kinetics Question 145
Question: The half life of a first order reaction is $ 69.35,\sec $ . The value of the rate constant of the reaction is [CBSE PMT 1990]
Options:
A) $ 1.0,{s^{-1}} $
B) $ 0.1,{s^{-1}} $
C) $ 0.01,{s^{-1}} $
D) $ 0.001,{s^{-1}} $
Show Answer
Answer:
Correct Answer: C
Solution:
$ k=\frac{0.693}{{t_{1/2}}}=\frac{0.693}{69.35}=9.99\times {10^{-3}}=0.01,{s^{-1}} $
