Reaction Rate

This interactive simulator explores Reaction Rate in Chemistry. Arrhenius k(T), order 0/1/2, [A](t) curves and particle tank. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.

Who it's for: Best once you already know the basic definitions and want to build intuition. Typical context: Chemistry.

Key terms

  • reaction
  • rate
  • reaction rate
  • chemistry

Particle tank

Pink = A · Blue = B (count ≈ [A]/[A]₀)
0 s

Live graphs

How it works

Explore **A → B** kinetics with a simple rate law. Turn on **Arrhenius** to see how **temperature** and **activation energy** change the rate constant **k**. A **catalyst** lowers the effective barrier (modeled here as a multiplier on **k**). Curves use **closed-form** solutions for 0th / 1st / 2nd order in **[A]**.

Key equations

k = A e^(−Eₐ / RT)  ·  Arrhenius (gas constant R = 8.314 J·mol⁻¹·K⁻¹)
0: [A]=[A]₀−kt  |  1: [A]=[A]₀e^(−kt)  |  2: 1/[A]=1/[A]₀+kt