The half life period of a first order chemical reaction is 6.93 minutes . The time required for the completion of 99\% of the chemical reaction will b - Chemistry MCQ AIEEE 2009 2026 | ExamTest.live

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The half life period of a first order chemical reaction is 6.93 minutes . The time required for the completion of 99% of the chemical reaction will be (lo g 2 = 0.301):

Solution & Step-by-step Explanation

For a first order reaction, k = \frac{0.693}{t _{1/2}} = \frac{0.693}{6.93} = 0.1 min^{- 1} .Time t = \frac{2.303}{k} lo g (\frac{a}{a - x}) For 99% completion: x = 0.99 a . t = \frac{2.303}{0.1} lo g (\frac{a}{a - 0.99 a}) = 23.03 lo g (100) = 23.03 \times 2 = 46.06 minutes .

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The half life period of a first order chemical reaction is 6.93 minutes . The time required for the completion of 99% of the chemical reaction will be (lo g 2 = 0.301):

230.3 minutes

23.03 minutes

46.06 minutes

460.6 minutes

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