At 30°C, the half life for the decomposition of AB is 200 s and is independent of the initial concentration of AB . The time required for 80% of the AB to decompose is (Given: log 2 = 0.30; log 3 = 0.

Question

At 30°C, the half life for the decomposition of AB is 200 s and is independent of the initial concentration of AB . The time required for 80% of the AB to decompose is (Given: log 2 = 0.30; log 3 = 0.48) 2 2 2 2

(A) 200 s
(B) 323 s
(C) 467 s
(D) 532 s

Prashant Kotian · Accepted Answer

Correct answer: B) 323 S. Since, half life is independent of the initial concentration of AB . Hence, reaction is “First Order”.

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