Chemistry
Half Life First Order
Find half-life of a first-order reaction.
t½ = 0.693 / k
Formula Explanation
Half-life is independent of initial concentration for first-order reactions.
Variables Explained
k = rate constant.
Solved Example
k = 0.0693 min⁻¹. Find t½.
t½ = 0.693 / 0.0693 = 10 min.