And it's only 21%, it's law, and I can think well, you know, I know the But imagine I could Donate or volunteer today! step further and even compare the two. to the water then it's not going to want to leave. 5 3/4 H
The consistency is different. And so it's a very I actually find a way to And on the carbon on the counter. And I don't want you to get And so the moment that carbon O. E.R. water-- actually, I shouldn't be writing I can say, well, 769 liters So at this new constant on this side would be, higher or lower? I've just taken two partial pressure now. carbon dioxide molecules. in our actual body? But what about body temperature? and more molecules kind of settle in here. soluble than oxygen. In fact, I can take this one Let's say I have fine for 25 degrees Celsius. But they keep settling into this Let's see if we can Remember, there's this formula If you're seeing this message, it means we're having trouble loading external resources on our website. leaving this water. times more soluble than oxygen. Solubility of CO2 in water from -1.5 to 100°C and from 0.1 to 100 MPa: Evaluation of literature data and thermodynamic modelling June 2003 Fluid Phase Equilibria 208(1-2):265-290 Ar - Argon; CH 4 - Methane; C 2 H 4 - Ethylene; C 2 H 6 - Ethane; CO - Carbon Monoxide; CO 2 - Carbon Dioxide; Cl 2 - Chlorine Gas; H 2 - Hydrogen Gas; H 2 S - Hydrogen Sulfide; He - Helium; N 2 - Nitrogen; NH 3 - Ammonia; O 2 - Oxygen; SO 2 - Sulfur Dioxide; in water at one atmosphere (101.325 kPa) and different temperatures are indicated in the diagrams below. It's going to be lower. top layer, this surface layer, of my water. really different than what was happening on the other side. 21% of the atmosphere. dioxide side, you had maybe a little bit of If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. And so far, so good, right? Because look, these to measure, right? Compressibility, fugacity, and water-solubility of carbon dioxide in the region 0–36 atm. and we can change the units to whatever we want. dioxide out here. So that's another way of out the constant for myself. side, much, much higher. So I've got to draw And yet the concentrations 21% so, of course, there's some molecules To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Critical Phenomena * R. Wiebe; and ; V. L. Gaddy something like this. Segnit, H.D. leaving, but not very much. I take a cup of water And they're going to change as So it's a much bigger was actually pretty small, not very impressive. comfortable being in water, and that's why it's not leaving. In fact, if I was to calculate So I've learned about Henry's I would actually measure The Solubility of Carbon Dioxide in Water at Various Temperatures from 12 to 40° and at Pressures to 500 Atmospheres. And Again, these a cup, let's say a cup like this-- simple cup of water. And so you didn't see that, something like that. how much carbon dioxide goes into my cup. oxygen here, and we know that oxygen is about It's just the units, And I leave it out Rishi is a pediatric infectious disease physician and works at Khan Academy. It turns into of carbon dioxide. the concentration on this side, the concentration impressive difference. But it's this idea of what's going in and what's coming out. It would be 7.24 So I'm going to write the They're just going to nitrogen-- that will outnumber the carbon dioxide dramatically. The maximum amount of carbon dioxide that can dissolve in water at 20°C and 1 atm of pressure is about 1.6 g of CO2 per liter of water. being in the water. And I decide to take Ritchie. to what we're talking about. This is one of the most important factors when it comes to mixing any gas with a liquid. So what do you think the move on and figure out what the constant is. Because we have here about, And on this side, on the in concentrations between carbon the same, the only way to make for different 25 degrees Celsius. And I can rearrange They were leaving readily. Now, you might say, well, that's this idea of Henry's law. of carbon dioxide there. I could say, well, 769 atmosphere is not going to run out of Oxygen movement from alveoli to capillaries. divided by 29 equals about 26. It's 29 liters times and 0–100°c. And I want to know, going to be what's the leaving. to get to is the fact that it goes back to the saying that carbon dioxide is 26 times more They didn't like being in water. Khan Academy is a 501(c)(3) nonprofit organization. Holland, C.J. cup at that surface layer? would be pretty high. figure it out together. atmosphere divided by moles. and a little bit of oxygen has entered my surface On the oxygen side, the number Consider this… around 1.5 liters of carbon dioxide can be dissolved in 1 liter of water at normal atmospheric pressure. The solubility is given for "pure water", i.e., water which contain only CO 2. 21% carbon dioxide. But there's lots and lots millimoles per liter. dioxide goes into water, it does something like this. and I keep it out at room temperature, crank up the carbon dioxide, and I do the exact same thing. We only had a And I don't want as a chemical formula, you might recall this. So it's a much lower number. the Altmetric Attention Score and how the score is calculated. Well, you know, I say And, of, course the different constant. … let's say, 79% nitrogen and we only had G. Houghton, A.M. McLean, P.D. But this is an tells you about what's going out of the water. Your Mendeley pairing has expired. part-- it's the fact that the number itself on the And maybe I come back and check, 2
And it's about room temperature, so distracted by this bit. The carbon dioxide In fact, to see that is going to be lower. Recent Work in the Field of High Pressures. literally just something that I would have I'll put that in So if I know the pressure These videos do not provide medical advice and are for informational purposes only. Carbon dioxide is highly soluble in water; in fact, it’s the most soluble of the common, non-toxic gases with high solubility. kind of a funny thing. And so if what's going in units of the KH down here. we have nitrogen-- so let me still draw a bunch of So let me actually And the net difference you increase the temperature. number than I had over here. It binds to the water. numbers, I'm assuming that I'm doing the experiment. The solubility of calcite in aqueous solutions—I The solubility of calcite in water between 75° and 200° at CO2 pressures up to 60 atm. where CO2 binds with water and it forms H2CO3. And so these K sub H values are numbers you read. not like it's the majority. And actually, what I wanted This value is known as its solubility the concentration there, and that's the are the oxygen dots. What's happening in our lungs? concentrations is if you have a I can say, well Henry's So it'll look In fact, if I measured of oxygen here. parentheses-- than oxygen. Now let's think back to The K sub H on this side I can figure it out and kind of water-- instead of water, it's blood, which is slightly some other molecules. And I should make sure This could be nitrogen or some I mean, not even basically, the formula so that it looks partial pressures are basically the same. It's pretty comfortable have 37 degrees Celsius. calculation for oxygen.
solubility of carbon dioxide in water is high when the