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The rate constant for a first order reaction is 1.54 x 10^-3 s^-1 . Calculate its half life time.

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The rate constant for a first order reaction is 1.54 x 10-3 s-1 . Calculate its half life time.

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We know that, t, 0.693 k

t1/2 = 0.693/1.54 x 10-3 = 450 s

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