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what is the half life equation for a first order reaction. So our half-life is equal to let me rewrite this here so our half-life t 12 is equal to 693 divided by k where k is our rate constant. So plug in k to the equation and you have your half life for A.
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View Available Hint s HA BE. Now lets think about this. Where t12 is the half-life of certain reaction unit - seconds R0 is the initial reactant concentration unit - molL-1 or M and.
View Available Hint s HA BE.
The rate law for a first order reaction is A A0e-kt. The half-life of a reaction describes the time needed for half of the reactant s to be depleted which is the same as the half-life involved in nuclear decay a first-order reaction. Half-life or t½ is the time that elapses before the concentration of a reactant is reduced to half its initial value. In fractional order reactions the order is a non-integer which often indicates a chemical chain reaction or other complex reaction mechanism.
