Timeline for In which cases temperature rise is possible? And why (microscopically) what's happening? [duplicate]
Current License: CC BY-SA 4.0
15 events
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| Dec 19, 2021 at 4:18 | history | left closed in review |
Michael Seifert Rory Alsop ZeroTheHero |
Original close reason(s) were not resolved | |
| Dec 17, 2021 at 11:39 | comment | added | Chet Miller | In case 1, as the container is accelerated, the gas nearer the trailing wall is compressed and the gas nearer the leading wall is expanded. If the acceleration is gradual, then the expansion and compression of the gas will be nearly reversible, and, in the end the work done to accelerate will match the final kinetic energy, so there will be no change in temperature. But, if the acceleration is very rapid, the expansion and compression will be somewhat irreversible, the work done on the gas will be greater than the final kinetic energy of the gas, and the temperature will rise. | |
| Dec 14, 2021 at 18:18 | comment | added | Bob D | @Orion_Pax As I explained in my answer to your other related question, if the gas (or liquid) is contained in a rigid (W=0), thermally insulated (Q=0) vessel, there will be no change in internal energy $\Delta U$, for all 5 situations since $\Delta U=Q-W$. For an ideal gas that will mean no change in equilibrium temperature, though there may be temperature and pressure gradients within the gas during acceleration, which disappear when equilibrium is re-established. | |
| Dec 14, 2021 at 16:05 | comment | added | R.W. Bird | During initiation of acceleration, the gas in a container is compressed toward the back wall. Compression of a gas is generally associated with an increase in temperature due to molecules bouncing off a surface which is motion relative to the gas. | |
| Dec 14, 2021 at 15:04 | comment | added | Orion_Pax | Also i am aaking for considering energy changes inside too where it gets lost etc @Connor_Behan Sir | |
| Dec 14, 2021 at 13:57 | comment | added | Orion_Pax | The speeds r very less compared to speed of light so i dont think this belongs to relativity its just part of thermodynamics | |
| Dec 14, 2021 at 13:55 | comment | added | Orion_Pax | Yeah @Chet_Miller Sir | |
| Dec 14, 2021 at 13:54 | review | Reopen votes | |||
| Dec 19, 2021 at 4:18 | |||||
| Dec 14, 2021 at 13:54 | comment | added | Orion_Pax | This problem is not from relativity pls reopen it | |
| Dec 14, 2021 at 13:24 | history | closed |
StephenG - Help Ukraine Connor Behan jng224 ACuriousMind♦ |
Duplicate of Is temperature a Lorentz invariant in relativity? | |
| Dec 14, 2021 at 12:58 | history | edited | jng224 | CC BY-SA 4.0 |
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| Dec 14, 2021 at 12:30 | comment | added | Chet Miller | In case 1, is the container initially stationary, and then suddenly made to travel at the speed of the train? Is the container insulated? | |
| Dec 14, 2021 at 9:07 | review | Close votes | |||
| Dec 14, 2021 at 13:25 | |||||
| Dec 14, 2021 at 8:47 | history | edited | Orion_Pax | CC BY-SA 4.0 |
edited title
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| Dec 14, 2021 at 8:41 | history | asked | Orion_Pax | CC BY-SA 4.0 |