Chemical Kinetics Question 164
Question: The rate constant of a first order reaction is $ 3\times {10^{-6}} $ per second. If the initial concentration is 0.10 m, the initial rate of reaction is [AFMC 1999 Pb. PMT 1999, 2000; BHU 1999; AIIMS 1999; KCET 2000; DCE 2004]
Options:
A) $ 3\times {10^{-5}}m{s^{-1}} $
B) $ 3\times {10^{-6}}m{s^{-1}} $
C) $ 3\times {10^{-8}}m{s^{-1}} $
D) $ 3\times {10^{-7}}m{s^{-1}} $
Show Answer
Answer:
Correct Answer: D
Solution:
Given : Rate constant of the first order reaction $ (K)=3\times {10^{-6}} $ per sec and initial concentration $ [A]=0.10M $ .
We know that initial rate constant $ K[A]=3\times {10^{-6}}\times 0.10=3\times {10^{-7}}m{s^{-1}} $ .
