Define the following terms : (i) Half- life of a reaction `(t_(1//2))` (ii) Rate constant `(k)`.

Define the following terms : (i) Half- life of a reaction `(t_(1//2))`

1.	Define the following terms : (i) Half- life of a reaction `(t_(1//2))` (ii) Rate constant `(k)`.
Answer» (i) Half life period `(t_(1//2))` is the time in which half of the substance has reacted . `t_(1//2)=[A]_(0)/(2k)` (ii) Rate constant : It is the rate of reaction when the molar concentration of each reactant is taken as unity.

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Define the following terms : (i) Half- life of a reaction `(t_(1//2))` (ii) Rate constant `(k)`.

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