Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 2 (Q.No. 35)
35.
With increase in temperature, the thermal conductivity of most liquids
Discussion:
12 comments Page 1 of 2.
Ankit said:
4 years ago
@All.
Thermal conductivity of liquids decreases with increasing temperature as the liquid expands and the molecules move apart. In the case of solids, because of lattice distortions, higher temperatures make it difficult for electrons to flow, hence the thermal conductivity of metals decreases.
Thermal conductivity of liquids decreases with increasing temperature as the liquid expands and the molecules move apart. In the case of solids, because of lattice distortions, higher temperatures make it difficult for electrons to flow, hence the thermal conductivity of metals decreases.
(2)
Soma kundu said:
5 years ago
Thermal conductivity of liquid decreases with increases temperature excepting water.
(1)
Uday said:
6 years ago
@All.
Thermal conductivity of liquids decreases with increase in temperature expecting pure water.
Thermal conductivity of liquids decreases with increase in temperature expecting pure water.
(1)
Dhaval said:
6 years ago
As temperature increases, the randomness of molecular movements increases. This obstructs transport of heat through liquids. Thus, the thermal conductivity of liquids decreases with increase in temperature.
Rajendra pal said:
6 years ago
Thermal conductivity of liquid decreases with an increase in temperature.
Akshat said:
6 years ago
Thermal conductivity of liquid and gas decreases with temperature.
Only water is an exception in liquid.
For water thermal conductivity is increase with temperature.
Only water is an exception in liquid.
For water thermal conductivity is increase with temperature.
Abdul rasak e. N said:
7 years ago
Correct answer is A.
Thermal conductivity of gases and liquids increases with increase in temperature. In solids K is decreases with increase in temperature.
Thermal conductivity of gases and liquids increases with increase in temperature. In solids K is decreases with increase in temperature.
Tanmay Shah said:
7 years ago
Thermal conductivity of Gases & Liquids increases with-an increase in temperature.
And Thermal conductivity of Solids decreases with increase in temperature.
And Thermal conductivity of Solids decreases with increase in temperature.
Ashish said:
7 years ago
@Anand & @Rajaramsathi.
Please refer cengel. The answer should be B.
Please refer cengel. The answer should be B.
Shafiq said:
9 years ago
When a liquid is heated, the molecules of the liquid move apart. Hence their mean free path increases. This results in reduced probability of collision of molecules. Therefore there is a reduction in thermal conductivity with increase in temperature for liquids.
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