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Why is ester hydrolysis slow in the begi...

Why is ester hydrolysis slow in the beginning and becomes faster after some time?

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The ester hydrolysis takes place as follows:
`{:(RCOOR'+,H_(2)OhArr,RCOOH+,R'OH),(("Ester"),("water"),("Acid"),("alcohol").):}`
The acid produced in the reaction acts as an auto catalyst for the reaction. Hence, the reaction becomes faster after some time.
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