Timeline for Is energy the ability to do work?
Current License: CC BY-SA 3.0
20 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 11, 2021 at 21:22 | comment | added | lattitude | The best definition that I think about energy, is that its just an abstract number which helps us to calculate certain things about a system. This discussion is along this line and is very interesting.physics.stackexchange.com/q/138972/100640 | |
| Feb 9, 2021 at 20:35 | answer | added | Ivan Guilhon | timeline score: 1 | |
| Jul 7, 2016 at 1:24 | comment | added | dmckee --- ex-moderator kitten | Much later related question: physics.stackexchange.com/questions/217495/… | |
| Jun 19, 2013 at 18:01 | history | edited | Qmechanic♦ |
edited tags
|
|
| Jun 19, 2013 at 18:00 | history | protected | Qmechanic♦ | ||
| Dec 12, 2012 at 13:44 | vote | accept | Kabelo Moiloa | ||
| Dec 7, 2012 at 18:03 | answer | added | user11266 | timeline score: 2 | |
| Dec 6, 2012 at 0:18 | answer | added | Paul J. Gans | timeline score: 1 | |
| Dec 5, 2012 at 16:39 | answer | added | Steve Byrnes | timeline score: 11 | |
| Dec 5, 2012 at 15:17 | answer | added | Chris Gerig | timeline score: 6 | |
| Dec 5, 2012 at 15:04 | comment | added | Kabelo Moiloa | Thanks, well you learn something every day. I was learning the Kevin-Planck form of the second law. | |
| Dec 5, 2012 at 14:53 | comment | added | resgh |
@CrazyBuddy I would say randomness, but not disorderliness. A high entropy system could very well be very ordered (eg black holes). And of a molecule? You mean of molecules, right?
|
|
| Dec 5, 2012 at 14:51 | comment | added | Waffle's Crazy Peanut | SIMPLY - we could say that entropy is the randomness of the molecules of a system considered. It is a thermodynamic state function. Please have a deeper look :-) | |
| Dec 5, 2012 at 14:50 | review | First posts | |||
| Dec 5, 2012 at 15:00 | |||||
| Dec 5, 2012 at 14:49 | comment | added | resgh | You're studying the second law and don't know what entropy is!? Well, its... not easy to explain. Just go on the wiki page for it now. It basically represents the 'randomness' of a system. The second law states that the entropy of a system cannot decrease. | |
| Dec 5, 2012 at 14:49 | comment | added | Kabelo Moiloa | Yes I agree with you, that was my argument that energy is not the ability to do work. | |
| Dec 5, 2012 at 14:47 | comment | added | Kabelo Moiloa | I don’t understand the connection with entropy here. Please explain. | |
| Dec 5, 2012 at 14:39 | comment | added | resgh | And by the way no, energy is not the ability to do work. Otherwise gravitation having a negative potential energy is troublesome. | |
| Dec 5, 2012 at 14:38 | comment | added | resgh | There are also some other definitions of entropy. Check out the wiki article. Well, this definition macroscopically is certainly true. I'm not sure about the microscopic validity of this definition though. Don't worry: The second law is just a probabilistic law, and you haven't refuted it. | |
| Dec 5, 2012 at 14:35 | history | asked | Kabelo Moiloa | CC BY-SA 3.0 |