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D Point DOsolid Oliquid OgasPoint EOsolid Oliquid Ogas[ Point [email protected] Elliquidgasg: Point [email protected] Alliquidgash: Point HHsolid Mliquidgas...

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D Point DOsolid Oliquid OgasPoint EOsolid Oliquid Ogas[ Point [email protected] Elliquidgasg: Point [email protected] Alliquidgash: Point HHsolid Mliquidgas

d Point D Osolid Oliquid Ogas Point E Osolid Oliquid Ogas [ Point F @solid Elliquid gas g: Point G @solid Alliquid gas h: Point H Hsolid Mliquid gas



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Indicate the physical state (solid, liquid, or gas) for each of the following at the designated temperature: (a) $\mathrm{H}_{2} \mathrm{O}$ at $-10{ }^{\circ} \mathrm{C}$ (b) $\mathrm{H}_{2} \mathrm{O}$ at $110^{\circ} \mathrm{C}$ (c) $\mathrm{NH}_{3}$ at $-100{ }^{\circ} \mathrm{C}$ (d) $\mathrm{NH}_{3}$ at $-50{ }^{\circ} \mathrm{C}$ (e) $\mathrm{CHCl}_{3}$ at $100{ }^{\circ} \mathrm{C}$ (f) $\mathrm{CHCl}_{3}$ at $50^{\circ} \mathrm{C}$ The melting points and boiling points for water, ammonia, and chloroform are as follows:

Okay, so today we're gonna be looking at the physical state for each of the following noble gases. And so for n. e. at negative 225°C.. So For that, the boiling point of Neon is -246°C.. So that means that it is going to yeah, be a gas at that temperature because the temperature is higher than the boiling point. Yeah. Moving on to see Oregon at -175° C. Mhm. Um So that is going to be, so the um the boiling point for that is going to be -186°C.. So that is also going to be a gas um but are gone at negative 200 is going to be. Um So for argon, the also again the melting point is um It is negative 189° C. And so that means that it is going to be a solid because it's frozen. Um And so for krypton at -155, so for krypton, the melting point um is negative 157 and the boiling point is negative 153. So at 155 it is going to be a liquid. Yeah, And at 150 that negative 150 it is going to be a gas because it's going to have boiled.

Okay. So we've sketched um a phase diagram for carbon dioxide. It's not to scale, but we've sketched in a triple point, right, and it's critical temperature and we know that at about one atmosphere it's going to sublime. So there's another temperature here, Which is about -785. Yeah, so those are degrees Celsius, This is one atmosphere. So the first thing we're asked is to estimate at about zero mm what what would the pressure be? You know, we didn't draw this to scale. So it's it's a pure estimate, but I'd say it's somewhere between 30 and 40 atmospheres, that's zero degrees. Okay. And then we need to find a spot where we're at about negative 50 and 10. And I'd say it's I'd say negative 50 here and 10 needs to be about here. So I'd say we're up here right in the liquid state. So, so yes, I'd say that is definitely a liquid. I also should have labeled this axis. Those are our pressures and atmospheres

Even so in this question they ask what dumps do we use to describe? The folic change upstate is solid to gas so you can say well right as a serial number then process are we process? Yeah. So is yeah, conversion of a solid to gas that is called sublimation. Sublimation. The bees conversion of a gas too solid that is called the position. The position. Okay. That next one is there's been yeah conversion of thing liquid into gas that is called vaporization vaporization. Okay. The next conversion of pain cash to agree with them is known as condense session. He part conversion of a solid to liquid that is called melting. Yeah, maintain okay than effort. Conversion of pain liquid to selene. It's called freezing. It's called freezing free thing. Um solidification. Thanks lori.

This question asks whether chloral ethane will be a solid liquid or gas at STP and tells us that it has a melting point of negative 1 36 degrees Celsius on a boiling point of 12 degrees Celsius. So if we think about STP that stands for standard temperature and pressure, the temperature is to 73 Calvin and the pressure is one aids e m. But since we're talking about Celsius here, we're gonna convert that to 73 K into Celsius on and it is zero degrees Celsius. So if we're at zero degrees Celsius, um, the mounting point is negative 1 36 degrees Celsius. Remember, the melting point is the point where it goes from a solid to a liquid solid to liquid. So, um, above 1 30 negative 1 36 it will be liquid, and the boiling point is 12 degrees Celsius, and the boiling point is where we go from a liquid to a gas and we are below the boiling 120.0.0 degrees. So it will be a liquid so easily, uh, claure thing is a liquid at STP


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