Thermal conductivity and specific heat capacity

Thread starter hanson
Start date Sep 19, 2005
Tags

Capacity Conductivity Heat Heat capacity Specific Specific heat Specific heat capacity Thermal Thermal conductivity

AI Thread Summary

Thermal conductivity and specific heat capacity do not have a direct relationship, although they can be somewhat related in certain materials. In metals, where thermal conductivity is primarily influenced by free carriers, a specific relationship exists: k=(1/3)c_v*v*l. Here, k represents thermal conductivity, c_v is specific heat capacity, v is the mean carrier speed, and l is the mean free path. Understanding this relationship is crucial for applications in materials science and engineering. Overall, while there is a connection in specific contexts, the two properties are fundamentally distinct.

Sep 19, 2005

hanson

Is there any direct relationship between these 2 properties of a matter?

Physics news on Phys.org

Sep 19, 2005

quark

There is no direct relationship.

Aug 3, 2010

vaatmoly

They can be somewhat related. For metals where thermal conductivity is dominated by free carriers, thermal conductivity(k) and specific heat(c_v) can be related by: k=(1/3)c_v*v*l, where v is the mean carrier speed and l the mean free path.

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...

View full post »

Thread 'Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ?'

Here is what I tried This question was actually asked in one of our engineering entrances. The answer was 1D. My teachers say that we have to use μₘ/fₘ to get to this answer. I cannot understand why. I'll be really glad if you could tell me the exact definition of power (numerically) that works in all scenarios.

View full post »

Thread 'Correct statement about a reservoir with an outlet pipe'

The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...

View full post »