Boiling water in a vacuum
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- Опубликовано: 4 окт 2024
- A #short #diy experimentation showing you how you can boil water in a vacuum.
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A #short video showing you how you can use household appliances to boil water in a vacuum. Using a syringe you can lower the pressure which decreases the boiling termperature of water. In a near vacuum cold water starts to boil.
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I tried it myself, it is real, and yes, I pumped it down, then up, and when I pumped it down for the 2nd time, the syringe like exploded
No trickery here 👌
was it hot water or still the same
It’s easier with hot water as the internal energy is higher. The water will get colder the more you do it.
It's cuz of the build up pressure and your grip not being strong enough that's why it exploded
@@znaka5166 I wouldn't say that the pressure built up - rather the syringe "imploded"?🤷♂
Dont release it like that, the water inside creates a water hammer ans the syringe can explode. Dont ask me how i know that :) a fragment of it struck my ear and if it were my eye, it wouldnt be good news.
Thanks for the heads up 👍 hope your ear didn’t get damaged too much?
No no, it was ok, but I was surprised for sure. Thinking about it later made it logical ofcourse. It was only air inside and I reseased it like that it wouldnt be a problem, since air is compressable. Water on the other hand isnt and the problem is that I had ONLY water inside, with zero air. Syringe ended up in a hundred pieces, and my face was all covered in water dropplets :D
@@mareprah there is a mark rober and the slow mo guys that did a video on the water hammer effect when you slam a glass bottle. Really cool to see it in slow mo.
Oh that's why we don't have many scientists left. Like I also want to put my head inside a particle accelerator and observe the phenomenon with my bare eyes!
@@Quartzite look up a story of a guy who actually did that once. But not intentionally, he did it by mistake. Would not recommend btw :D
Couldn’t air be coming from the bottom of the seal? You can see it break the seal for a second only on that side
Some air will come in, but when I let it go, you can see there is hardly any air with the water in the syringe.
can you do this to make water clean and drinkable?
No this simply boils the water to make it drinkable or clean use a filter
Nope- boiling water at atmospheric pressure is near 100 degrees C so that will kill any germs. This boiling is near vacuum so the water is room temperature 🙃
@@AdriaanVanNiekerk if you go to everest that temp will be less cuz of the less required energy for the water to turn into a gas and that energy is gonna be around 70 C in temp measuring cuz of the lower pressure that's what is happening in the syringe
@@AdriaanVanNiekerk and what I said is that it will simply boil the water not make it clean
Why this is happening
As he plugged the hole at the top with his finger and draw down the plunger, he lowered the pressure inside of the syringe. As you might know the lower the pressure-the lower the temperature required tfor the water to boil.
@@mareprah couldn’t have said it better myself 👌🏻
هل الماء عندما يغلي في هذه الحالة ، يمتص الحرارة؟
بسبب الضغط
legit, fam
It's true water can boil that way too it's cuz it creates a vacuum which makes the water turn into vapor cuz when out of the vacuum the air pushes it down and it would need more kinetic energy that's why we boil water to increase the kinetic energy but to boil water you also have to take into consideration the height if you're on mount Everest it would take 60 C° to boil it cuz of the lower air pressure
That's just air.
It's water vapor
The air pressure applied to the syringe is separating the water and the air from each other. When you release the pressure, it goes back to the normal state it was in. Water vapor doesn't boil water.
@@1laforees9 no water is boiling in true vacuum water boils cuz of the lower pressure which requires less kinetic energy to turn it into a vapor which in normal conditions we heat water to give it that initial kinetic energy to fight the pressure
@@1laforees9 and as the water is boiling the molecule H2O tends to make weak bonds so when it can escape it will like any liquid
@@1laforees9 and so when you release it the vacuum will fill with air and the boiling will stop and so if the water inside can condense if there is a difference in the temperature