Q.

The half-life of a first order reaction is 100 seconds. What is the time required for 90% completion of the reaction ?

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answer is 3.

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Detailed Solution

For a given reaction at same temperature rate constant remains constant.2.303×0.3010100=2.303t90%log100100-90 t90%=1000.3=333 sec
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Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
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Best Books for NEET
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