Equilibrium lab

The tool on this page is a simplified equilibrium simulator intended to help students to understand chemical equilibria, by allowing them to study a reaction, A + B → C, and its reverse reaction, the decomposition of C → A + B. The simulator can be used to illustrate the impact of changing the initial ratio of the reactants, as well as adjusting the rate of the revese reaction (decomposition of C). read more

Reactant A Reactant B Product

Initial number of molecules

fewer
more

Reactant ratio

A
B

Reverse reaction rate

slow
fast

Dashboard

molecules (n)
reactant A (ratio)
reactant B (ratio)
product (ratio)
Keq

Output table

You can copy and paste this table in for example Excel to chart the mole fractions, reaction rates and reaction quotient.

Epoch (n) mole fraction A mole fraction B mole fraction C forward reaction rate (s-1) reverse reaction rate (s-1) reaction quotient, Q