Chemical Kinetics Question 164

Question: The rate constant of a first order reaction is 3×10−6 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) 3×10−5ms−1

B) 3×10−6ms−1

C) 3×10−8ms−1

D) 3×10−7ms−1

Show Answer

Answer:

Correct Answer: D

Solution:

Given : Rate constant of the first order reaction (K)=3×10−6 per sec and initial concentration [A]=0.10M .

We know that initial rate constant K[A]=3×10−6×0.10=3×10−7ms−1 .

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