Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion
Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 1 (Q.No. 35)
35.
Thermal conductivity of water __________ with rise in temperature.
Discussion:
23 comments Page 1 of 3.
Karthik L said:
6 months ago
The thermal conductivity of water may increase or decrease with the temperature because, for a certain temperature range, the conductivity will increase (up to a certain temperature only) if the temperature goes beyond that the molecules move vigorously then the conductivity will decrease rapidly.
Hope it helps.
Hope it helps.
BHAVIK said:
5 years ago
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 decreased) so the thermal conductivity increase with increase temperature.
Scientist atanu said:
4 years ago
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.
AKR said:
7 years ago
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.
Hitesh Daka said:
9 years ago
Thermal conductivity of liquids and solids decreased as temperature increased.
But in case:.
1) Water's thermal conductivity increased as temperature increased.
2) Al and uranium's thermal conductivity increased as temperature increased.
But in case:.
1) Water's thermal conductivity increased as temperature increased.
2) Al and uranium's thermal conductivity increased as temperature increased.
Rohan said:
5 years ago
In general, the thermal conductivity of gases increases with temperature. Kinetic theory of gases explains why. Thermal conductivity of liquids decreases with increasing temperature as the liquid expands and the molecules move apart.
Priyanka said:
9 years ago
For liquids and solids, the thermal conductivity decreases with increase in temperature. But water is an exception, in the case of water the thermal conductivity increases with increase in temperature.
Bharat said:
1 decade ago
There is an exception to water. There is a temperature called anomalous temperature 4*c at which water behaves differently before it and after it.
Pali Rosha said:
1 decade ago
In Liquids thermal conductivity decreases with increase in temperature (except water) due to decreases in density with increase in temperature.
Adarsh said:
1 decade ago
For most liquids the thermal conductivity falls with increasing temperature but this occurs only above about 130°C in liquid water.
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