Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 7 (Q.No. 39)
39.
Thermal conductivities of most of the liquids __________ with rise in temperature.
Discussion:
8 comments Page 1 of 1.
Ankit saini said:
4 years ago
The correct answer would be D because on increasing the temperature of the liquid, the liquid will expand due to which its volume will increase.
We know that,
Ï = m/v.
K=(ACpÏ^4/3)/m^1/3.
We know that,
Ï = m/v.
K=(ACpÏ^4/3)/m^1/3.
Urvish Makwana 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.
Ajay said:
6 years ago
B is the right answer.
Thermal conductivity of liquids decreases with rise in temperature as the liquid expands and molecules move apart.
Thermal conductivity of liquids decreases with rise in temperature as the liquid expands and molecules move apart.
Sushil said:
8 years ago
K for most of the liquids and gases increases with increase in temperature. So, option A is the correct option.
Alpesh Solanki said:
5 years ago
May increase or decrease depending upon liquid.
So, the Answer should be D.
So, the Answer should be D.
Armah sitotaw said:
5 years ago
Anyone explain the correct answer.
Tanmay Shah said:
7 years ago
Option A is the Right Answer.
MNNIT said:
6 years ago
A is the correct answer.
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