Thermal conductivity of air with rise in temperature
A. Increases
B. Decreases
C. Remain constant
D. May increase or decrease depending on temperature
Answer: Option A
Solution (By Examveda Team)
As the temperature of air increases the molecular diffusion also gets increases and in case of air,Thermal conductivity is directly proportional to the lattice vibration and molecular diffusion and hence as the temperature increases the thermal conductivity of air increases.
This Question Belongs to Mechanical Engineering >> Heat And Mass Transfer
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