@rhettallain0: #physics question. Why can’t you boil water in boiling water? #thermodynamics #learningontiktok #TikTokLearningCampaign #STEMTok

Rhett Allain
Rhett Allain
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Wednesday 10 June 2026 12:43:28 GMT
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abbyfartsondessie
abbyfartsondessie :
ur on stem
2026-08-22 18:41:24
4
shmerino
Bruh 💀 :
What if you add another glass with water inside the second, will it never reach let’s say, 90?
2026-08-03 05:31:41
0
deelambs
Arthur McBibbles :
Algorithm brought me back for the answer. Hm. Efficient.
2026-06-10 15:08:34
23
danny.hamilton
Danny Hamilton145 :
Could you boil the water in the inner container if you add salt to the outer container (to raise the boiling temperature)?
2026-06-10 15:58:25
2
resuasterious
Resuasturious :
What about the temperature of the steam in the boiling bubbles?
2026-06-10 17:18:49
1
thedeadpike
Pike :
have the probes been calibrated you used 2 different instruments.
2026-06-10 14:33:45
1
under_yer_bed
Roll_man :
so the boling water wich is 100c wont make the other water boil cause it would only reach 100c?
2026-06-10 22:02:57
9
pet1ia
Petunia :
Can't water boil at less than 100°C, depending on the air pressure?
2026-06-10 22:50:23
3
tezhefas
Tezhefas :
There’s also a non-negligible amount of insulation from the container itself, further reducing the maximum temperature inside
2026-06-10 12:57:06
2
devonjenks250
ThunkingMan :
This is how I cook my rice, (double-boiler).
2026-06-14 09:37:15
0
cuppajoedelaware
cuppa :
the boiling temperature at bottom of beaker is slightly higher than 100C due to static head. With tall beakers, you could get small amt of water boiling in the inner beaker.
2026-06-14 17:21:08
0
fakudolan
stickyricky69 :
So that means only the water at the bottom of the big beaker is boiling and it's floating to the top? rather than the whole big beaker being boiling water
2026-06-10 18:08:22
2
j_r_m87
J_R_M :
So if we placed a pot inside a pot, lets say 10 or so, just like the russian nesting dolls, will we be loosing 5 or 6 degrees per pot? So, the 10th pot would be like at 60° or so?
2026-06-14 00:34:15
0
ishka_bibel
Ishka_Bibel :
The actual boiling occurs at the hotplate
2026-06-11 19:36:16
1
michaelkipper3
Michael Kipper :
isn't the water vapour in the bubbles over 100C?
2026-07-13 23:32:42
0
olympichopeful70
Graham Petersen :
Latent heat
2026-06-25 01:25:14
1
wolphje
wolph :
We call it au bain Marie here, Marie's bathtub.
2026-06-10 18:24:14
4
eyesoflight35
nickname :
it is actually quite a complex system. well done 👌
2026-06-11 04:55:09
1
pet1ia
Petunia :
If it takes strictly more than 100 °C to boil, then the surrounding water must be at more than 100 °C. Given enough time, the inside water might reach more than 100 °C and then boil.
2026-06-10 22:49:52
2
dily_101
Dily :
This is wild🤯
2026-06-11 12:46:42
0
benjix6556
Benji The Conqueror :
beautiful explanation
2026-06-12 13:56:38
0
pfg0200
Paul Geibler :
Latent heat of vaporization. It takes additional energy to force a phase change from liquid to gas. The opposite occurs when steam condenses on to an object. This makes high pressure steam leaks very dangerous
2026-06-11 21:44:42
0
clem.h.fendango
Keith VINCENT :
That’s why you need pressure to increase the temperature to boil another container of water. This is the concept for a CSG used in sterilization. Use HP steam to boil demineralized water for clean steam generation.
2026-06-12 16:17:34
0
noammils
BABO :
sous vide….
2026-06-12 23:33:48
0
instalatorul.vietii
Instalatorul VIEȚII :
The upper jar cannot boil because it cannot get hotter than the boiling water surrounding it. The lower jar is already at its saturation temperature and cannot transfer enough heat to raise the upper jar above its own boiling point. However, if the lower jar were pressurized, its saturation temperature would increase, allowing it to become hotter than 100°C and eventually bring the upper jar to its boiling point. The opposite happens under vacuum. If the pressure inside the upper jar were reduced, the boiling point would drop and the water could boil even near 0°C. Under a deep enough vacuum, ice can even change directly into vapor through a process called sublimation. Most people grow up with the simple idea that water boils at 100°C, and that's it. In reality, 100°C is just one point on the saturation curve, at atmospheric pressure.
2026-06-12 21:49:12
0
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