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Author Question: Describe the three mechanisms of heat transfer. Which mechanism is least important as a means of ... (Read 46 times)

iveyjurea

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on: Jul 14, 2018
Describe the three mechanisms of heat transfer. Which mechanism is least important as a means of heat transfer in the atmosphere?
 
  What will be an ideal response?

Question 2

In what part of the electromagnetic spectrum does the Sun radiate maximum energy? How does this compare to Earth?
 
  What will be an ideal response?


nikmaaacs

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Reply #1 on: Jul 14, 2018
Answer to Question 1

The three mechanisms of heat transfer are conduction (the transfer of heat through matter by molecular activity; this is the least significant), convection (the transfer of heat by mass movement or circulation within a substance), and radiation (the heat-transfer mechanism by which solar energy reaches our planet as radiant energy readily travels through the vacuum of space).

Answer to Question 2

The Sun radiates maximum energy at 0.5 micrometer, which is in the visible range. The maximum radiation for Earth occurs at a wavelength of 10 micrometers, well within the infrared (heat) range.


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