# Stability of Peroxynitric Acid in cold temperature

I have a question about the stability of Peroxynitric Acid i.e. $$\ce{HO2NO2}$$ at cold temperature. I know that it becomes stable when temperature decreases, but what is the specific reason for it? I guess it has to do with the temperature changing the potential hypersurface, but I'm not sure. I also seem to not be able to find a good explanation about it in the internet, since most is about the kinetics I'm not interested in. Possibly, this question relates to all PAN-like species i.e. $$\ce{R(O)OONO2}$$ such as the acetylperoxy nitrate. Any good physical explanation? Thanks

• High entropy of decomposition, I guess. – Mithoron May 18 '20 at 17:35
• Can you elaborate a bit more? – Diger May 18 '20 at 18:42