How do I simulate a catalyst?

Open this page and use the live Reaction Engineering Kit tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a catalyst from your own measurements.

Use case · powered by Reaction Engineering Kit

Reaction Engineering Kit for a catalyst

Simulate a catalyst live in your browser. This runs the real Reaction Engineering Kit solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

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Reaction Kinetics

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Reaction KineticsLive

rate laws · Arrhenius temperature

Controls

Presets

Watch reactant concentration fall over time. The reaction order sets the curve shape; raising temperature speeds the rate constant, Arrhenius-style.

Rate constant k

Temperature factor

▶ Run in Python

Data Inspector

Order1

Effective k0.300

Arrheniusk = A·e^(−Ea/RT)

Governing equation

rate = k_{eff} [A]^{1} = 0.30 [A]^{1}

Reading this result: First-order: [A] decays exponentially with a constant half-life; raising temperature lifts k_eff to 0.30, steepening the curve Arrhenius-style.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

↓

Equilibrium

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Chemical Equilibrium (Le Chatelier)Live

A ⇌ B shifting with stress

A (reactant)0.67 M

⇌

B (product)1.33 M

Controls

A reversible reaction A ⇌ B settles where forward and reverse rates balance. Add reactant or raise temperature and watch the equilibrium shift to relieve the stress.

Presets

Equilibrium constant K

Amount added

Temperature factor

▶ Run in Python

Data Inspector

K (effective)2.00

[A]0.67

[B]1.33

Favoredproducts

Governing equation

K_{e q} = \frac{[ B ]}{[ A ]} = \frac{1.33}{0.67} \approx 2.00

Reading this result: Effective K is near 1, so A and B coexist in comparable amounts and a small stress can tip the balance either way.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

↓

Titration

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Acid–Base TitrationLive

pH curve · equivalence point

Controls

Add base to an acid and track the pH. The steep jump marks the equivalence point, where moles of acid equal moles of base.

Presets

Acid concentration (M)

Base concentration (M)

Acid volume (mL)

▶ Run in Python

Data Inspector

Equivalence50.0 mL

Typestrong acid + strong base

pH at eq.7.0

Governing equation

C_{a} V_{a} = C_{b} V_{b} \Rightarrow V_{e q} = \frac{0.1 \times 50}{0.1} = 50.0 mL

Reading this result: Equivalence sits near 50.0 mL; because this is a strong acid with a strong base, the pH there is exactly 7 and the jump is nearly vertical.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Reaction Engineering Kit tool models a catalyst with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Reaction Engineering Kit

Reaction Engineering Kit for a reaction rate Reaction Engineering Kit for a titration Reaction Engineering Kit for a gas law Reaction Engineering Kit for a pH balance Reaction Engineering Kit for an equilibrium Reaction Engineering Kit for a battery cell Reaction Engineering Kit for a combustion Reaction Engineering Kit for a crystallization

Other ways to simulate a catalyst

Molecular Dynamics for a catalyst Titration Curve for a catalyst Reaction Kinetics for a catalyst Chemical Equilibrium for a catalyst pH Calculator for a catalyst Radioactive Decay for a catalyst

Frequently asked questions

How do I simulate a catalyst?: Open this page and use the live Reaction Engineering Kit tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a catalyst from your own measurements.