The discussion centers on how molecules radiate photons and contribute to thermal radiation, particularly in the context of energy gain and the mechanisms behind photon emission. It explores theoretical concepts related to molecular behavior, thermal radiation, and the sources of emitted photons.
Participants express differing views on the implications of radiation being zero and the nature of photon emission, indicating that multiple competing perspectives remain without a consensus on the mechanisms involved.
There are unresolved questions regarding the definitions of temperature at the molecular level and the specific processes that lead to photon emission, which may depend on various assumptions about molecular behavior and energy states.
If radation is zero, the molecules do not radiate photons, so the questionZaya Bell said:if heat lost through any other means but radiation is zero
appears a bit strange. Can you elucidate ?Zaya Bell said:how exactly do these molecules radiate photons?
I'm saying that all other forms except radiation is zero.BvU said:If radation is zero, the molecules do not radiate photons, so the question
It is said that all molecules above absolute zero emit thermal radiation which are actually photons. The question is, what is the source of the this photons? From the electron? nucleus? Where? And how?BvU said:appears a bit strange. Can you elucidate ?
Ah, I misread, sorry.Zaya Bell said:I'm saying that all other forms except radiation is zero.
correct -- up to a point: individual molecules do not have a temperature. They have velocities and thereby kinetic energy. The temperature of a macroscopic quantity of material has a temperature that is directly related to the average kinetic energy.Zaya Bell said:It is said that all molecules above absolute zero emit thermal radiation which are actually photons.
any phenomenon that can absorb energy (e.g. molecular vibrations, rotations, electron orbits) to go into a state of higher energy can emit energy and end up in a lower energy state.The question is, what is the source of the this photons? From the electron? nucleus? Where? And how?
The electromagnetic fields within the material are constantly changing because they are produced by the random movement of trillions of trillions of charged particles in the heated material. These changing fields are what causes the electromagnetic radiation.Zaya Bell said:The question is, what is the source of the this photons? From the electron? nucleus? Where? And how?
Yeah, sorry. Wanted to say all molecules in a material above absolute zero.BvU said:individual molecules do not have a temperature.