Question:
Which of the following metals is having the highest value of thermal conductivity ?
Which of the following metals is having the highest value of thermal conductivity ?
Show Hint
Silver has both the highest electrical conductivity and the highest thermal conductivity of any metal.
Copper is a close second, which is why it is widely used for high-efficiency heat exchangers.
Copper is a close second, which is why it is widely used for high-efficiency heat exchangers.
Updated On: Jul 21, 2026
- Copper
- Silver
- Aluminium
- Stainless steel
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
Thermal conductivity (\( k \)) is a physical property of a material that measures its ability to conduct heat.
Metals generally have high thermal conductivities due to the presence of free electrons that can easily transport thermal energy.
Step 2: Detailed Explanation:
Let us compare the approximate thermal conductivity values of the listed metals at room temperature:
- Silver: \( k \approx 429\text{ W/m}\cdot\text{K} \)
- Copper: \( k \approx 401\text{ W/m}\cdot\text{K} \)
- Aluminium: \( k \approx 237\text{ W/m}\cdot\text{K} \)
- Stainless steel: \( k \approx 15\text{ W/m}\cdot\text{K} \)
Among all common elements and metals, silver has the highest thermal conductivity, followed closely by copper.
Thus, silver is the correct answer.
Step 3: Final Answer:
The metal with the highest thermal conductivity is Silver.
Thermal conductivity (\( k \)) is a physical property of a material that measures its ability to conduct heat.
Metals generally have high thermal conductivities due to the presence of free electrons that can easily transport thermal energy.
Step 2: Detailed Explanation:
Let us compare the approximate thermal conductivity values of the listed metals at room temperature:
- Silver: \( k \approx 429\text{ W/m}\cdot\text{K} \)
- Copper: \( k \approx 401\text{ W/m}\cdot\text{K} \)
- Aluminium: \( k \approx 237\text{ W/m}\cdot\text{K} \)
- Stainless steel: \( k \approx 15\text{ W/m}\cdot\text{K} \)
Among all common elements and metals, silver has the highest thermal conductivity, followed closely by copper.
Thus, silver is the correct answer.
Step 3: Final Answer:
The metal with the highest thermal conductivity is Silver.
Was this answer helpful?
0
0
Top ICAR AIEEA Dairy Technology Questions
- As per legal standards (FSSR, 2011), the acidity (%LA) of chakka should not be more than:
- Which of the following food additive is permitted as preservative in paneer?
- Given below are four statements:
Statement (I) : Homogenisation breaks down fat globules in milk into smaller entities.
Statement (II) : Homogenisation breaks down fat globules and casein micelles in milk into smaller entities.
Statement (III) : Homogenisation slightly increases viscosity of milk.
Statement (IV) : Homogenisation improves the appearance of milk.
In light of the above statements, choose the most appropriate answer from the options given below. - With regard to temperature of operation, place the following unit operations in sequence in an increasing order of temperature:
(i) Sterilisation
(ii) Thermisation
(iii) Homogenisation
(iv) Bactofugation and
(v) HTST pasteurization.
Choose the correct answer from the options given below : - “Narampak” and “karapak” refer to varieties of sandesh with reference to which of the following parameters ?
View More Questions
Top ICAR AIEEA Heat Transfer and Unit Operations Questions
- With regard to temperature of operation, place the following unit operations in sequence in an increasing order of temperature:
(i) Sterilisation
(ii) Thermisation
(iii) Homogenisation
(iv) Bactofugation and
(v) HTST pasteurization.
Choose the correct answer from the options given below : - Match List-I with List-II
\begin{tabular{ll} List-I (Name of Process) & List-II (Temperature/time)
(A) Pasteurization & (I) \(60\ ^\circ\text{C}\) no hold
(B) Sterilisation & (II) \(55-60\ ^\circ\text{C}\) no hold
(C) Homogenisation & (III) \(72\ ^\circ\text{C}\) 15 sec
(D) Bactofugation & (IV) \(118\ ^\circ\text{C}\) 15min
Choose the correct answer from the options given below : - In falling film milk evaporator, the temperature difference between milk and steam should be approximately around :
- Indirect UHT treatment can be done using which of the following methods ?
- Which of the following value is related to sterilization process ?
View More Questions
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?
View More Questions