Myeou Posted June 10, 2012 Share Posted June 10, 2012 Reaction between NO and O3 is a luminescence reaction and it forms NO2 and O2 with light. Why light it produced in the reaction. Is it because of at the end electrons NO2 going down from a higher state ? If it yes , if we heat up NO2 will it make that glow again ? Link to comment Share on other sites More sharing options...
mississippichem Posted June 10, 2012 Share Posted June 10, 2012 In general yes. Chemiluminescence, as distinguished from photolyminescence occurs when a product or intermediate decays back down to the ground state. Two excited state species or one ground state and one excited state species can also form an exciplex or excimer which can also give a chemiluminescent phenomenon. There are even more rare third order processes as well. I'm not familiar with the specific luminescence mechanism behind this reaction. Link to comment Share on other sites More sharing options...
Enthalpy Posted June 22, 2012 Share Posted June 22, 2012 http://nett21.gec.jp/CTT_DATA/AMON/CHAP_4/html/Amon-054.html NO2 is produced in an excited state, electrons falling to ground state produce light. Visible light needs several eV excitation energy that would destroy the NO2. You better heat a piece of ceramic or tungsten to emit ligh, or use non-thermal processes. Link to comment Share on other sites More sharing options...
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