- #1
katelr
- 4
- 2
Consider two solid objects in the vacuum (of different materials, if you will) at different temperatures approaching each other until they make "perfect contact" through flat surfaces (no gaps or defects, so that thermal contact conductance effects are absent, even though interfacial thermal resistance may still be present).
Of course, before making contact, they exchange heat via electromagnetic radiation. My question is: is this heat exchange via thermal radiation still present once the bodies are making contact with each other and exchanging heat via thermal conduction? (Please explain what's going on in terms of the constituent particles of the bodies.)
Of course, before making contact, they exchange heat via electromagnetic radiation. My question is: is this heat exchange via thermal radiation still present once the bodies are making contact with each other and exchanging heat via thermal conduction? (Please explain what's going on in terms of the constituent particles of the bodies.)