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Question: What will be the half life of the first order reaction for which the value of rate constant is \(200...

What will be the half life of the first order reaction for which the value of rate constant is 200s−1200s^{- 1}?

A

3.46×10−2s3.46 \times 10^{- 2}s

B

3.46×10−3s3.46 \times 10^{- 3}s

C

4.26×10−2s4.26 \times 10^{- 2}s

D

4.26×10−34.26 \times 10^{- 3}

Answer

3.46×10−3s3.46 \times 10^{- 3}s

Explanation

Solution

t1/2=0.693k=0.693200=3.46×10−3st_{1/2} = \frac{0.693}{k} = \frac{0.693}{200} = 3.46 \times 10^{- 3}s