Free interactive chemistry · SIM-ENV-002

Atmospheric ozone chemistry

Stratospheric ozone: the Chapman cycle, and how chlorine atoms destroy ozone catalytically.

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How to use this simulation

Move the total chlorine slider.
Watch the fluxes (moving dots) through each reaction.
Read the steady-state ozone on the graph.

What to notice

Cl is regenerated, so one Cl atom destroys many O₃ molecules.
Even small amounts of chlorine lower ozone a lot.

Try this

How much chlorine halves the ozone?

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