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How is the solubility of solid NaCI in water affected by cach of the following changes?decreasing the tempcrature from 259€ to 10*C: (select)b. increasing the...

Question

How is the solubility of solid NaCI in water affected by cach of the following changes?decreasing the tempcrature from 259€ to 10*C: (select)b. increasing the temperature from 25PC to 44PC: (select)decreasing the pressure from atm to atm: (select)increasing the pressure from atm to atm: (select)

How is the solubility of solid NaCI in water affected by cach of the following changes? decreasing the tempcrature from 259€ to 10*C: (select) b. increasing the temperature from 25PC to 44PC: (select) decreasing the pressure from atm to atm: (select) increasing the pressure from atm to atm: (select)



Answers

For a saturated aqueous solution of each of the following at $20^{\circ} \mathrm{C}$ and 1 atm, will the solubility increase, decrease, or stay the same when the indicated change occurs? (a) $\mathrm{He}(g),$ decrease $T$ (b) $\operatorname{RbI}(s),$ increase $P$

So for the first part, be dealing with helium gas onda. A decrease in temperature decrease in temperature would result in a decrease in the kinetic energy off my gases, molecules and solution. Andi a decrease basically, um, the kinetic energy will result in an increase in the inter molecular forces holding the gases particles. With the actress solution, increase in intimately forces will result in an increase in Saudi ability For the next part. We are dealing with a solid on solids and an acquisition are unaffected by temperature and so solid ability. Well, the the scene we

Okay, so we're gonna dissolve a gas. So we know that this process is exo thermic, okay. And we know that our temperature is 22 degrees Celsius and six atmospheres. And that those conditions, it would have a more clarity of 0.300 moller. So let's think about what affect temperature and pressure have on the scalability of a gas. Since dissolving a gas is an exotic thermic process. When we increase the temperature, it's going to cause the reaction to shift to the left and this is going to decrease our cell ability. Gases are always less sellable at higher temperatures, increase the kinetic energy, the gases move around and they escape from the solution. If I increase the pressure, that's Henry's Law. That says that's directly proportional. So that's going to increase my cellie ability. Okay, so let's look at all these different conditions in part a we have the same temperature and we're decreasing our pressure. Therefore, we're going to decrease our selling ability. So we're going to expect this to have a concentration that's less than our original 0.300 more. In the second one. We're decreasing the temperature and we have the same pressure. So decreasing temperature. We said increases scalability for gases. So we would expect this to have a malaria that is greater than our 0.3. In our next case we're going to decrease the temperature and we're going to increase the pressure. So decreasing the temperature we said, increases our sally ability. Increasing the pressure also increases our cell ability. So we should end up with more clarity. That is greater than our 0.3. And then finally, in our last example, we're going to increase the temperature and we're going to decrease the pressure. Can we increase the temperature? We decrease the cell viability, we decrease the pressure of the gas above the solution, we decrease the cell ability. So this will be less than 0.300 moller

Okay. So we've got our gas and it's going to dissolve and we know that it has a pressure of four ATM. And we know that the processes eggs a thermic. Okay, So let's look at how temperature and the pressure above a solution affects sally ability for an exotic thermic reaction. When we increase the temperature, the reaction is going to shift left. Okay. So we're going to decrease our scalability. And according to Henry's law, when we decrease the pressure, we decrease the scalability and vice versa. So let's look at our different conditions here were at four atmospheres and 25 degrees Celsius. And we're gonna compare everything else to that. Okay, So for part a we've increased the pressure. So that is going to increase our cell ability. That's Henry's Law. Those two things are directly proportional. Yes. And we've decreased our temperature and we know that since its eggs a thermic, this is going to increase our cell ability by shifting the reaction to the right, Okay, so our sally ability is going to increase. Okay, so we know several things about our substance. We know it's a gas. Okay. We know we're at 25 degrees Celsius. You know that we've got the pressure of that gas as four atmospheres and that those conditions, it's more clarity at this 0.2 Moeller. Okay, so let's talk about how temperature and pressure affects eligibility. Since this is eggs a thermic. If I increase the temperature, my reaction is going to shift to the left and it's going to decrease my cell ability. And according to Henry's law, when we increase our pressure, we're going to increase our sally ability. Yeah, there was a directly proportional. So then let's look at the different conditions we have here. We're changing to five degrees Celsius and just six ATM. Okay. So we're decreasing the temperature. So that is going to increase our scalability. It's going to cause the forward reaction to take place and we're increasing our pressure. Since those are directly proportional, that's going to increase our scalability. So both of those factors increase our cell ability. So we're going to expect it to be greater than what it originally was, which was point oh two oh moller. And our second set of conditions, we're increasing the temperature and we're decreasing the pressure. So an increasing temperature, it's going to decrease our sally ability and increasing the pressure is also going to decrease our cell ability. So we're expecting this to be less than our point oh two oh moller. And then our next set of conditions were decreasing the temperature and the pressure is the same. Okay, so when we decrease our temperature, we increase our selling ability. So we're in fact expecting this to be greater than our point oh two oh moller. Mhm. And then finally the temperature stays the same and we're decreasing our pressure and decreasing our pressure, decreases our cell viability. So we're expecting this to be less than the original 0.0 to 00 moller.

Problem 62 increasing the concentration of non volatile solute in water affect the A. Well. Professor Dick Bridges B freezing point decreases. See boiling point increases. D. Osmotic pressure increases. Yeah, this is our final answer for this question.


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