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.
Neeraj said:
9 years ago
D is right answer refer for the graph.
Shivram said:
9 years ago
Friends, please note that density of water is max at 4-degree centigrade.
Manish said:
1 decade ago
As we know thermal conductivity of liquid decreases with increase in temperature so option B is correct.
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
Here, the thermal conductivity of water increases with increase in temperature.
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.
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.
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.
DEEPAK CHOUDHARY said:
1 decade ago
Fusion curve of water has negative slope so that water is expands on freezing like that.
Keval patel said:
1 decade ago
Aluminium is also this kind of metal in which temperature increase then conductivity decrease.
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