Question

1. Explain Why Earth’s atmosphere in part is heated by Conduction?
2. On a summer morning, a student walks barefoot across his paved driveway with no problem. Later that afternoon he steps barefoot onto the same driveway and must quickly run off because the bottoms of his feet feel like they are burning, why?
3. Would the inside of the aeroplane get warmer or cooler without the air circulation system?
4. Derive the working equation of a simple heat transfer case from PC processor to the air cooled heat sink?

Answer 1

Answer:

1)In conduction, heat moves from areas of more heat to areas of less heat by direct contact. Warmer molecules vibrate rapidly and collide with other nearby molecules, transferring their energy. In the atmosphere, conduction is more effective at lower altitudes, where air density is higher.