Thermal conductivity of water _________ with rise in temperature.
A. Remain same
B. Decreases
C. Increases
D. May increase or decrease depending upon temperature
Answer: Option D
Solution(By Examveda Team)
Same happens when we heat water, as the temperature increases the water expands making atoms move more freely enabling to transfer heat at increased speed (the resistance between atom decreaed) so the thermal conductivity increase with increase temprature.This Question Belongs to Mechanical Engineering >> Heat And Mass Transfer
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Comments ( 3 )
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Option d is correct
Increases
"C" is correct
Since in question already condition of temperature is mentioned (Rise - Increased)
Water - temperature directly proportional to "K"
Here K = Thermal conductivity of water