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.
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.
MAYUR said:
5 years ago
Thermal conductivity increase with increase in temperature only for water.
(1)
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.
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.
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.
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.
Sunil prajapati said:
8 years ago
D is the right answer. I agree.
Mr. Sunil Sarangamath said:
8 years ago
According to me, the answer is C (increases the thermal conductivity).
Neeraj said:
9 years ago
D is right answer refer for the graph.
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