0
$\begingroup$

If ozone is $O_3$ why is it an outer layer of the atmosphere? It seems $O_3$ would sink in a solution of $O_2$, rather than float on it.

$\endgroup$
3
$\begingroup$

O3 is less stable compared to O2 ( Positive gibbs free energy) . In the upper layers of atmosphere it is constantly generated by UV radiation falling on O2 gas , thus though it dissociates into O2 , it is continuously being generated also. As we come down , rate of generation falls and hence O3 concentration falls too.If O3 tries to fall it will decompose to give O2.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.