Tagged Questions

4
votes
5answers
215 views

Having a problem about entropy, thermodynamics

I am a high school student. So, while studying about thermodynamics, I got a little curious about entropy. As I read, entropy is the rate of change of chaos. So, if the entropy change of a system is ...
1
vote
0answers
38 views

Calculating the change in entropy in a melting process

I have a homework question that I'm completely stumped on and need help solving it. I have a $50\, \mathrm{g}$ ice cube at $-15\, \mathrm{C}$ that is in a container of $200\, \mathrm{g}$ of water at ...
1
vote
0answers
44 views

What other factors effect the ability of a propigating field of pressure in a gaseous medium to predict gravitational collapse?

What other factors effect the ability of a propigating field of pressure in a gaseous medium to predict gravitational collapse? Will the only factor influencing the Speed of Sound in this medium be ...
2
votes
1answer
64 views

Is there an abstract notion of heat within a microscopical system?

The microstates of a system are said to be unobservable. I can introduce the entropy as a measure of the number of microstates, which lead to the same macroscopic variables. So in this detailed ...
-4
votes
3answers
477 views

Can heat be extracted and concentrated? [closed]

If one could devise an answer to this question, electricity would be free for everyones disposal. (seems like a good dream but in reality free energy will be this worlds downfall)
1
vote
1answer
241 views

How to vizualize a heat pump microscopically?

Hey guys, while learning thermodynamics i wondered how a the principle of a heat pump would look at a microscopic level, not on a quantum mechanical level. I learned that when a hot and a less hot ...