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Is the mixing of two particular; unknown realgases spontaneous under all conditions?Only if thcir intermolecular forccs arc complctcly attractive undcr all conditio...

Question

Is the mixing of two particular; unknown realgases spontaneous under all conditions?Only if thcir intermolecular forccs arc complctcly attractive undcr all conditionsYes, the mixing is always spontancousOnly if thcir intermolecular forccs arc complctcly rcpulsivc under all conditionsNo, thcir mixing is ncvcr spontancous

Is the mixing of two particular; unknown realgases spontaneous under all conditions? Only if thcir intermolecular forccs arc complctcly attractive undcr all conditions Yes, the mixing is always spontancous Only if thcir intermolecular forccs arc complctcly rcpulsivc under all conditions No, thcir mixing is ncvcr spontancous



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In the following quesrions rwo statcmenrs (Asscrtion) (A) and Rcason (R) are givcn. Mark (a) If borh $A$ and $R$ arc corrcct and $R$ is the corcct cxplanation of $A$ (b) If both $A$ and $R$ arc corrccr bur $R$ is nor the corrcer cxplanation of $A$ (c) $\mathrm{A}$ is rruc bur $\mathrm{R}$ is false (d) $\mathrm{A}$ is false bur $\mathrm{R}$ is rruc. (c) $\mathrm{A}$ and $\mathrm{R}$ horh are false ( $A$ ): Icnic compounds tend to be nenvolacile. (R): Intermolecular forces in these compounds are weak.

In this question, we'll look at the inter molecular forces responsible for liquefying hydrogen gas, hydrogen gas is composed of two atoms of hydrogen bonded together. So looking at the inter molecular force that will occur When the molecules come into close contact with one another. We can go ahead and start looking through them all. The inter molecular forces vis a process of elimination. So we know that hydrogen bonding can occur as hydrogen is not bonded to a more electro negative atom. We also know that covalin bonds are not going to form and form a Covalin network. In any sort of the sentences, there are no free electrons on the hydrogen is all the electrons are being shared in the singular covalin bond right here and then looking at ion dipole forces, we don't have any ions. And breaking this bond would take putting in energy when we are actually trying to liquefy it. So looking at the other ones, Diaper dipole interactions also won't occur as the electrons are shared equally between these two atoms, as both atoms are of the same electric negativity as they're both hydrogen. So there won't be any dye poll in inherent disciple within the molecule. This leaves us with London dispersion forces. London dispersion forces can occur because we basically will introduce as this molecule is coming with its electrons right here. So we have our electrons right here. It can induce a temporary dye pole as it induces as it shows a partial negative charge right there. It will go ahead and induce a positive A partial positive charge right here and will cause that interaction. And this will continue to occur in the London dispersion forces or what's going to hold the H2 gas together in a liquid sense. Thank you.

You're looking at Water and glycerol were asked Would you expect him to be visible in all proportions here on the left and true glycerol from the right? I'm sure you probably Why did I do this? Because propane on if you look in your text is fully missile with water. So you call that water conform hydrogen bonds. So in this case, you can have a hydrogen bond between water in this hydroxide. And so if water is fully miserable with something like pro panel, which only has this'll one polar group to work with, then clearly water would be more justice, Miss Moore, with something that has more of these polar groups turn track with. So since we know that proposal is fully missile and it basically looks just like gristle or clitoral with only one always groupthink cholesterol, which has more of these polar age groups, would also be miserable with water. So the answer is yes. Part B s is to list my trilogy retractions that could collect between water molecules, gristle, molecule. We already talked about hydrogen bonding in the previous slide, where we have, um either the oxygen of the water interacting with hydrogen or the oxygen and the closer all interacting with a high street in the water. Um, so these air hydrogen bonds that can happen. That's thes, um, die pulled diaper forces. We know that water has a disciple moment. Um, where the oxygen is negative, partially negative. And the hydrogen. Zahra. Partially positive. Okay, So water has thes die, pulls in them, and so does the closer. A molecule that Khosrow molecule has a number of disciples again. Where you have this negative and on the oxygen partially positive carbon or pop Partially positive hedge in. So that's where the diaper diaper forces come up. And then finally learned in this version forces we can have the dye pole in the water. Um, cause a shift in the electrons along this carbon hydrogen chain. Um, that can polarize so we can polarize the carbon 100 change, and thus making attracted come, make it attracted to the water molecules. So that's where the long and special forces comfort

For part A using the diagram is given, let's predict the type of interest molecular force present. Go for it diagram one you can see that this is a hydrogen bond or diagram two inter molecular force present would be a London dispersion force. Okay. Or diagram three, you have an iron diet full force. Mhm. Hence the diagram for we have a dipole dipole force mm. Yeah. For B. Which inter molecular force is the weakest, so coat of before into molecular forces. Mhm. These London dispersion for us. Yeah. Yeah. Mhm. Okay. Is the weakest? Uh huh. Mhm. Yes.

Okay, so let's discuss the inter molecular forces in each of these. So I too is a non polar covalin compound. So the only forces that it will have our London dispersion forces. So you'll need to overcome those London dispersion forces in order to change it into a gas. The second compound here is puller. So it has London dispersion forces. They all Covalin compounds do since its polar, it also has dipole dipole attractions. And because of this oxygen right here, it has a hydrogen bonded to it and these lone pairs that's a hydrogen bond. So this also has hydrogen bonds. And then in this last one this is a polar compound, right? It's bent. So all Covalin compounds have London dispersion forces and this one will also have dipole dipole horses, but it doesn't have hydrogen bonds. Okay, the hydrogen has to be bonded to an N. And O. Or an F. So just dispersion and dipole dipole


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