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Question

Chemistry Question on Chemical Kinetics

50% of a first order reaction is completed in 30 min. The velocity constant of the reaction is

A

0.231

B

2.31

C

0.00231

D

0.0231

Answer

0.0231

Explanation

Solution

k=0.693t1/2=0.69330=0.0231 k = \frac{0.693}{t_{1/2}} = \frac{0.693}{30} = 0.0231