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half-life, t1/2 (SI unit: s) definition

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In a kinetic experiment, the time required for the concentration of a particular reacting species to fall to one-half of its initial value. (Its dependence on initial concentration depends upon the order of reaction. It is independent of initial concentration only for a first-order process.) See also lifetime.


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half-life, t1/2 (SI unit: s) definition
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