For a first order reaction A B, the rate constant, k = 5.5 10^ -14 s^ -1 . The time required for 67% completion of reaction is x 10^ -1 times the half life of reaction. The value of x is _____ (Nearest integer)

JEE Main 2022 Chemistry question

For a first order reaction , the rate constant, . The time required for 67% completion of reaction is times the half life of reaction. The value of x is (Nearest integer)

Answer: 16

Solution

For a first order reaction kt = . For 67% completion , so =

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Question ID VK-034953