Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 2 (Q.No. 13)
13.
Thermal conductivity of air increases with rise in temperature.
Correct
Incorrect
Answer: Option
Explanation:
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Discussion:
2 comments Page 1 of 1.

Ayo said:   7 years ago
With increasing temperature the mole fraction of water vapor increases, as well as the thermal conductivity of dry air.

Tibin said:   1 decade ago
Thermal conductivity of gases are proportional to the velocity. As per the kinetic theory of gases velocity is directly proportional to the square root of Temperature (T) and inversely proportional to the square root of Molecular weight.

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