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Half-life period of a first-order reaction is 10 minutes. Starting with 10 mol L−1, rate after 20 minutes will be

Question

Half-life period of a first-order reaction is 10 minutes. Starting with 10 mol L−1, rate after 20 minutes will be
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Solution 1

To find the rate after 20 minutes, we need to use the concept of half-life in a first-order reaction.

The half-life of a first-order reaction is the time it takes for the concentration of the reactant to decrease by half. In this case, the half-life period is given as 10 minutes.

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