Timeline for Explaining internal energy from a macroscopic perspective
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 28, 2022 at 6:18 | comment | added | Harshit Rajput | Can you recommend any good book, in general, for thermodynamics? I'm currently referring Fundamentals of Engineering thermodynamics by Moran and Shapiro | |
| Jun 25, 2022 at 11:39 | vote | accept | Harshit Rajput | ||
| Jun 25, 2022 at 8:46 | comment | added | Andrew Steane | @HarshitRajput Yes. My answer simply expands on the same point he is making. | |
| Jun 25, 2022 at 4:45 | comment | added | Harshit Rajput | That is so interesting. Is it something like what @JanLalinsky wrote in his answer? | |
| Jun 24, 2022 at 17:26 | comment | added | Andrew Steane | @HarshitRajput For this you need to invoke some mathematical methods and proofs involving partial derivatives and the concepts of state function and proper differential. The main fact is that if an integral between given endpoints is independent of the path then there exists a single-valued function of state whose change is given by the integral. But as I say you need to learn the maths along with the physics. A good textbook will present all of this. | |
| Jun 24, 2022 at 14:23 | comment | added | Harshit Rajput | a system can be taken from state 1 to state 2 by adding energy via work, irrespective of what type of work it is, as you said. How does that make me conclude that there is a state property like $U$? Is it because since I added energy to the system, in state 2, that energy must be stored 'internal' to it. I can even argue that the system had some energy stored internally even in state 1, which was given to it while bringing it from a prior state 0 to 1? | |
| Jun 23, 2022 at 14:38 | history | answered | Andrew Steane | CC BY-SA 4.0 |