Use carbon dioxide'$ phase diagramSupercritical fluid71.0SolidLiquidCas56, 4| Temperatun ( C)At ! atmosphere and room temperature (25*C) would you expect solid...

Sketch the phase diagram for carbon dioxide. If you have carbon dioxide at 1.0 atm and 25 C, could you turn it into a liquid by cooling it down? How could you make it a liquid at 25 C? If you increase the pressure of carbon dioxide that is at body temperature (37 C), will it ever liquefy?

Family name is on my body. On this question, he told us to drew the fees. The Graham off carbon dioxide. Uh, this is a piece there, Graham. Off carbon like. Sorry, You must save in your head that shape, which is? There are era line between solar than the liquid is line is shifted to write. And here is the line between a liquid and the gas. And you're a line between solid. And guess you must the seam that number at the triple point, which is 51 atmosphere and negative. 56.7 Sleaze. Yours. What? You must deceive the number off. Critical temperature, certain one and a critical pressure and everyone atmosphere. This point is represent the melting point off that Sciutto and on the same line. When we got the liquid, we don't found their Boynton. Good boy off see or two, uh, from these value you want to know? Could you make that sea or two at one atmosphere? Soul here at one atmosphere and in timbre 25 which is is is here. Okay. And these reasons could you make it liquefied by the cooling? Here you are at this condition and he asked if we make cooling which make it morning decreasing their temperature. So it is Goran Decreasing the temperature decreasing is a temperature which you mean we move in these directions moving in his direction mean that that CEO to that exists in gaseous state will be in the sonic. So by cooling, it's difficult to make Aunt Liquefied. So the question the answer off the first question is it possible to make it liquefied by cooling that breacher either Wrong. In fact, in the question at this temperature 20 Fine. How can you make the CEO to liquid? And if we look here to make it liquid, we must mean so. That's mean that buying reeling is a pressure. The C 02 gas will be liquid. The survey question at Sirti survey. If we look for group two critical at 31 So, uh, 37 it will be here at certainly serve it. Is it lick we find by increasing the pressure If we increase the pressure, we will move in these directions. These solution is called Critical Floyd solution and the solution is a lot like with a tall So the answer off that, Sir The question is no, it's seen. It's difficult to make it liquefied by increasing the pressure because we after the critical boy thank you.

So this question wants us to use the given phase diagram to answer a couple of questions. First, the question is asking What phases Substance at room temperature, which is 25 degrees Celsius and at one atmosphere. So as the batteries for the solid and liquid phases intersect at one atmosphere at negative 112 Celsius and negative 108 Celsius respectively. We can extrapolate that at 25 degrees Celsius at what, at one atmosphere, substance will be a gas. Um natural questions asking what phases a substance at 0.75 atmospheres and at negative 114 degrees Celsius and going across the phase diagram to 104 negative 114 degrees Celsius at um, 0.75 atmospheres. We'll find the substance should be a liquid at thes conditions. Um, next question is asking what is the temperature of the liquid phase at 380 millimeters of mercury? So first we need to convert the pressure from millimeters of Mercury two atmospheres and we should find that 380 millimeters of mercury is equivalent thio 3800.5 atmospheres and at 0.5 atmospheres. If the substance is at a liquid phase, then its temperature must be between, um, negative 117 Celsius and negative 119 Celsius. Um next, the question is asking, What is the vapor pressure of the solid phase? Um, at negative, 122 degrees Celsius. And if the substance is a solid at negative 102 degrees Celsius, the vapor pressure must be greater than 0.36 atmospheres on Beacon. Do that just by reading up the boundary line. Um, given the temperature and the phase, Um, the question says it is, um, Finally, the question is asking which phase is more dense, the solid or liquid phase. And given that the slope of the melting point, um, is positive, we conceive e that on increase in pressure, which, if the equilibrium towards solid, whereas a decrease in pressure, which, if the equilibrium towards liquid. Given this relationship with pressure, we can confirm that liquid must be less dense than the solid in the solid state is the more is theme or dense one

For this question. We asked if Commodore inside can be legal fight at room temperature. And ah, to do that, we need to take a look at a graph from our previous question. Right. You face that Graham from the previous question and look at the temperature at room temperature. Right, which is 20 degrees, 20 degrees. There's just a rough sketch, right? 20 degrees is around here for you to be in a liquid form. The Commodore outside needs to be at a certain amount off pressure and is about the pressure from the graft is given to be about 56 atmospheric pressure. So anything above 56 you can see that the covered also exists s a liquid rather than a people. So, yes, it's possible Bye to liquefy a the carbon dioxide at room temperature by increasing the pressure to 56 8 years

Right for this first question I've extracted on the face. Day groom. Okay, so, um, going tears these this particular face their crime. Okay, um, this diagram him. All right, So, um, uh, question a phone for question, A okay for no question a ah face. You know, the face on the substance face of a substance that that that, you know, found that is founded. Room temperature and pressure out of TP. Okay, room temperature and pressure. It's a 20 atmosphere. Okay, um is going to be Gus. Okay? Because if you look at what where one atmosphere is Ah, the glamour that was fear. Pressure is precious. Michigan atmospheres and its states. Um, the way access. Okay. And it's right here. One is right here. Okay, so when you go course, when you got close going to get the time rooter pretend pressure is supposed to be around 25 degrees Celsius, right? That means for the rest of this going, the right side is good to be to be gas. So that means our substance going to exist in Gas state or it then for part B. Okay, I still in the diagram. If the pressure exerted the sample is, you know, 0.7 a selling five atmospheres. Okay, if the pressure exerted 0.5 atmospheres in the temperature is, um, negative. 114. All right degrees. So she is what? Face the substance exit. So that means Wouldn't look at the graph. Right. So we got to locate 0.75 Most Rickles roughly estimate that. Okay. And then went to look at where? That the sex There. One negative. 114. Ah, on the X axis. Okay, so, um, when you look closely when you look closely Oh, are open self help somewhere is somewhere, you know? They're okay. There, there, then, um, the 31 14. Suppose to be afternoon. That too. 1 15 You know, because the was decided so somewhere, somewhere there. So where this talking to the sex? It needed to be somewhere in the liquid face. Right. So this face is going to be We could Okay. Ah, for part C for part C. Still on days still in the dead ground. Right? If you know, we've given a river pressure off 380. Okay. 380 millimeter. Mercuri and then we need to find the temperature off these substance, you know, temperature at these pressure. But we quite well know that one millimeter mercury, Okay, is has equivalent off. Um, 0.0 Ah, 13 16 atmospheres. Okay, so go to need to find how many atmospheres does 380 Believe me to McCoury makeup. Okay, so this request might play going to get, um, around zero point of fire atmospheres. Okay, So if no way, if if you have this terrible favor atmospheres, we're going toe today to our taxes. Okay, we locates. Retreat. Locate these Open frame. Then we see the corresponding temperature on the on the on the X axis. Okay, so 0.5 is there Okay now. So when glucose glucose, whether the intercept Mrs somewhere there, toe close to 1 20 So correspondent approaches close to I want to enter the great social. Is there? Okay, so there's a temperature for this vapor pressure. So in and get you 1 20 because searches, but full but part D. OK, but the there the pressure will go to were asked to tradition in the overpressure. That's negative. 1 22 degrees. So she's okay. 100 research is Ah, you know, comes before negative 1 20 Okay. Is somewhere there somewhere? Um, somewhere. You know, they're okay. This is This should be less than 0.37 most years. Right? So, um, if if this is 1 21 because negative want to introduce Bristle. She is there, and we have a correspondent of Atmosphere is off 0.37 So our world is going to be slightly less than 0.37 atmospheres. Okay. Yes. So, uh, roughly something to do with frequent, um, to aids, you know, frequent tweet. There. Okay. Must begins. Uh, there's no points. You cross my playing, you know, equating number 22 23 27 water boats wanting to. All right. Ah, for part e. Okay. Uh um, why solids are ah, denser, right solids. Look, a structure of solids. If this structure off its arguments, will it? Okay, for instance, victory illustrate how particles behave or how particles are between solids and liquids. Okay, so if he's, uh, these are particular solid in this dinner is elected. So there's a solids. These are liquids. Are you get that? Particles in solids are densely packed, you know, a densely packed and then there pucks E in a close, you know, they're closely packed and then that they're in ordered fashion. Okay, The ordered fashion. And then that densely packed tensely, Very much densely packed. Okay, densely. And then in ordered fashion, right. All through these a this particular a space, but for liquids met its very sparsely practical widely. And then Hitler your profession. So between this, too, will get that socialism more dense. Okay, so let's a more dance, huh? With the look, it's because off the particles are closely parked, and then they have, um um uh, you know, on order, you know. Oh, ordered particles are a parking ordered if I Sure. Okay. All right.