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 2 of 3.
Abhishek said:
9 years ago
Because after 100f it behaves as gas and increase in temperature then the thermal conductivity increases so the answer is D.
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.
Shivram said:
9 years ago
Friends, please note that density of water is max at 4-degree centigrade.
Neeraj said:
9 years ago
D is right answer refer for the graph.
Mr. Sunil Sarangamath said:
8 years ago
According to me, the answer is C (increases the thermal conductivity).
Sunil prajapati said:
8 years ago
D is the right answer. I agree.
Govind said:
8 years ago
Decreases is correct.
Here already mention the rise in temp so thermal conductivity of liquid decrease with increase in temp.
Here already mention the rise in temp so thermal conductivity of liquid decrease with increase in temp.
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.
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.
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.
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