Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 1 (Q.No. 4)
4.
Which of the following is generally considered as opaque surface towards radiations?
Discussion:
14 comments Page 2 of 2.
Mahendra potliya said:
5 years ago
Why liquid are upaque?
(1)
Lenin said:
4 years ago
Because both liquis and solids are reflect the radiation energy.
(2)
Kumar said:
2 years ago
When solar radiation hits a surface, the photons can be absorbed, reflected, or transmitted. In the case of opaque (not transparent) materials, none of the photons are transmitted. .
If the material is dark and dull (not reflective or shiny) very few of the photons are reflected.
If the material is dark and dull (not reflective or shiny) very few of the photons are reflected.
(2)
Afjal said:
8 months ago
Solids and Liquids are generally considered opaque to radiation because their molecules are tightly packed, which leads to high absorption or reflection of radiation.
Gases, on the other hand, are typically transparent to radiation, allowing it to pass through with minimal interaction. This property is due to their sparse molecular arrangement.
Gases, on the other hand, are typically transparent to radiation, allowing it to pass through with minimal interaction. This property is due to their sparse molecular arrangement.
(1)
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