yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Cooling down water by BOILING it


less than 1m read
·Nov 10, 2024

Let’s cool down some water by boiling it. The water in this beaker is hot, but it’s not boiling because the molecules in the beaker don’t have enough kinetic energy right now to rapidly fight against the air pressure from the outside that’s squeezing them into a liquid state.

But let’s put them under less pressure. I’m going to suck some of the water up into this syringe, and then I’m going to seal the syringe with some transparent tape right over the hole. Perfect, nice and airtight.

Now when I pull down the syringe, the air pressure inside will drop, and many of the liquid molecules in here will be able to fight against that lower pressure and become a gas. Oh yeah, look at that, the water is boiling! This is literally boiling water, but we have not warmed it up at all.

In fact, now that it’s boiling, it’s actually colder. That’s because the temperature of this water is just the average kinetic energy of all the molecules in the sample. But by boiling it like this, we’ve allowed those molecules with the highest kinetic energy to escape as a gas. So what’s left in liquid form are actually colder molecules on average.

More Articles

View All
Bill Ackman on Short Selling
You I would be remiss if we spent this time together and we didn’t talk a little about Herbalife. Herbalife, for those of you who don’t know, and Bill’s gonna explain more, is a Direct Selling scheme. The day I came to see you in New York, you were about …
Too Drunk to Stand | Underworld, Inc.
On the Fort Berthold Reservation, tribal police are racing to a domestic violence call. It sounds like he used these days hands and assaulted a female. Lieutenant Harte has seen a spike in this kind of crime. It’s often a result of out-of-state workers ha…
See How Ancient Past and Present Meet in This Coastal Town | National Geographic
(soft music) [Gabriel] This is Huanchaco. This is my hometown. Huanchaco is a small fishing village that is north of the city of Trujillo, and it’s a very rich place in archaeological sites. There has been a continuous occupation in this area for more th…
The Right Reason and Way to Approach Strategics
All right, so the next panel that we have will discuss the right reasons and right ways to approach strategics. The speakers on this panel are from Genentech, J&J, Medtronic, and Novartis, and they all focus on finding opportunities and partners that …
There’s Still Oil on This Beach 26 Years After the Exxon Valdez Spill (Part 3) | National Geographic
So we pulled into this Bay and we’re waiting for the tide to drop. Down, the tide is dropping just before midnight, so we basically have to wait it out. We can look at one of these beaches where we’re told there’s oil, and swimming over the top of the bea…
Khan Academy Districts Overview
Foreign [Music] The benefit that Khan Academy brings to our school district is being able to provide a platform that provides individualized practice study skill. The ability for students to increase their knowledge proficiency. The support that Khan Aca…