Timeline for Why do Temperatures Equalize
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| May 2, 2016 at 7:22 | comment | added | Vladimir Kalitvianski | I agree with you. I just want to precise that we deal with things that appear in our equations. Their appearance makes them meaningful. Any other (imaginary) combinations are possible to construct, but they are useless since they are not involved in our routine calculations. In other words, our equations determine what we deal with. | |
| May 1, 2016 at 20:27 | comment | added | Ilja | Yes, it is well defined; just as the mean mass ... or the mean wordlength for the names of the particles is well defined. Nonetheless, the mean energy would not be a meanigful quantity without this property. Maybe the mean energy per mass would be, if this were the quantity that was equal in equillibrium. Or anything other. | |
| May 1, 2016 at 20:20 | comment | added | Vladimir Kalitvianski | The mean energy is well defined for any mixtures, even for those far from equilibrium. Out of equilibrium, there is a non stationary energy exchange governed with Boltzmann equations. | |
| May 1, 2016 at 20:06 | history | answered | Ilja | CC BY-SA 3.0 |