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Q.

For a first order reaction, the concentration decreases to 30% of its initial value in 5.0 min. What is the rate constant?

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a

0.14min−1

b

0.060min−1

c

0.46 min−1

d

0.24min−1

answer is B.

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Detailed Solution

The rate constant,

k=15ln⁡10030 k=0.24min−1

This is the required rate constant.

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