#kinetics

3 articles

Pharmacokinetics: How Drugs Clear the Body

First-order elimination, half-life, and accumulation to steady state — the small pile of exponential arithmetic that decides how often a drug has to be taken and how wide its safety margin is.

10 min read·Jul 16, 2026

Chemistry

Chemical Equilibrium

A sealed flask settles at a fixed shade of brown and stays there forever — not because the reaction ended, but because the forward and reverse reactions now run at exactly the same rate.

10 min read·Jul 15, 2026

Chemistry

Reaction Rates and Catalysis

Collision theory, the activation-energy barrier, and the Arrhenius exponential — how chemistry decides not whether a reaction happens but how fast, and what a catalyst can and cannot change.

10 min read·Jul 13, 2026