First Order - Average Life ($$\tau$$)

Rarely Tested

$$\tau = \frac{1}{k} = 1.44 \cdot t_{1/2}$$

Concept: Represents the mean life expectancy of a reactant molecule before it undergoes chemical transition.

Notation:

  • $$k$$ = Rate constant ($$\text{s}^{-1}$$);
  • $$t_{1/2}$$ = Half - life Period.
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