The discussion centers around the role of light energy in the reaction AgBr → Ag + Br2, exploring why light is specifically mentioned as necessary for this reaction compared to other forms of energy such as electricity or heat. The scope includes theoretical considerations and the dynamics involved in the reaction.
Participants express disagreement regarding whether light is the only energy source required for the reaction, with some asserting it is essential while others argue for the possibility of alternative energy forms.
There are unresolved questions about the definitions and implications of excited state dynamics, as well as the conditions under which the reaction can occur with different energy sources.
Because it involves excited state dynamics. Heat and other forms of energy deals with ground state dynamics (it is theoretically possible to produce excited states with any form of energy, but it is realistically impossible due to the scale of energy required).shihab-kol said:AgBr →Ag + Br2
This reaction takes place in presence of light energy, but why only light ?? Why not electricity, heat or any other forms of energy?