Maximum boiling azeotropes
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- Опубликовано: 5 сен 2024
- A short video explaining why liquids show negative deviation from Raoult's Law - graphical representation of their vapour pressure and boiling point w.r.t composition.
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Finally a good explanation that makes sense
Hello Farhan,
So glad that you could relate to the topic. As a student I used to find it so overwhelming so can totally relate to your relief 😊.
Do check out Organic Chemistry videos as well- I am sure you will find them helpful too specially the flowcharts to help you remember and recall Organic Chemistry easily.
ruclips.net/p/PLh0w_4t1FQg58qkTCXNB4mkq_BN1R251N
And more will be uploaded soon.
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Thanks so much
Very welcome to the channel Pratik.
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Thanks a lot for this. Really helpful.
Puneet Saini Thank you for the encouraging comment. Watch out for some more videos on other topics by subscribing to the channel. Also visit the website for some interesting and easy to recall flow charts.
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Very well explained ma'am .thank you 😃
Thank you Gaurav. Glad to see the smile on your face. Keep it on as I plan to load more videos soon. Help me to spread this joy by sharing the channel. Best Wishes.
NICELY EXPLAINED
Thank you Saamya. Hope this helps to build up on the basics. Don't forget to subscribe and share with friends. Happy studying 😊
Thanks for clearing concept
Thank u so much mam for this video....it is really helpful for me....mam pls upload more videos on chemistry .....love u mam ...
Hello Subhradev,
So happy to know that the video was helpful. Do take down the notes for offline reference.
I am a bit confused which topic to start. Can you suggest any topic to me 😄.
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Correction has to be made : HCl does not form hydrogen bonding with water
The case here is is HCl dissociates in water to form H+ ion and Cl- ion.
the H+ and Cl- ion is then associated with water through ion-dipole interaction which is stronger than hydrogen bonding in water and the VDW in HCl
Lim Wei Lun - Yes i stand corrected.I think it's more reasonable to explain it as hydronium ions formed as a result of ionisation showing H bond than the HCl.
itself. Thank you for reviewing. I shall be uploading a fresh video on this topic as even the writing on the board is not so legible! Just out of interest- Are you a student or a teacher?
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@@PenandPaperChemistry I'm an A-level tutor
@@limweilun3331 👍 Thanks for visiting the channel and sharing your valuable feedback.
Lim Wei Lun- out of academic interest I have been researching about the above point and have realised that it's a divided house on HCl forming/not forming Hydrogen bonds. One school of thought also indicates that the first step to ionisation of HCl is the attraction between Cl and H30 + due to Hydrogen bonding which then leads to ionisation. While it is also reasoned that since the size of Chlorine atom is large the electronegativity difference is not large enough to bring about a strong hydrogen bond formation as in the case of Flourine.Although from curriculum point of view the elements fluorine, Oxygen and Nitrogen are specified to form Hydrogen bonds. Would like to know your valuable opinion on the same. 🙏
mam you mean we get residue as our final mixture ?
The residue left in the flask is a mixture while the distillate will be A or B depending on the composition of the original solution.Hope this answers your question.
Do like and subscribe to the channel as I shall be loading videos on Organic compounds and their study and a number of topics which students usually struggle with.Happy studying: )
If A or B vapours then only B or A should be present how of residue is present ????
Sivakumar - the distillate does not contain the entire amount of A or B which is there in the mixture. Only a fraction of the lower boiling liquid vaporises and once the mixture reaches the constant boiling composition, both A and B vaporize together and can't be separated further by boiling alone. Hope this answers your doubt.
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@@PenandPaperChemistry wt is residue ??? :( sry didnot understand plz explain
Sivakumar- let us suppose you start with a 100 ml mixture of each of HCl and water.Boiling point of HCl being lower (around 48 degrees at 38% composition), it slowly starts vaporizing and on cooling is obtained as distillate. What will happen to the percentage of HCl in the mixture?
yes the percentage of HCl in the mixture will start decreasing and that of water will start increasing. Once the composition of the mixture in the distillation flask reaches 22.2% HCl the boiling point of the mixture becomes 108 degrees approx. Now the two components water and HCl do not vaporise seaparately but together no matter how long you heat.So beyond this composition you cannot separate the two components by distillation alone.
Hope this provides you with some clarity on the word residue.Here the word residue means the liquid mixture left in the distillation flask.
Mam hindi me bnao plzzzzz
Hello Syeda,
ruclips.net/video/o-Yvghb5aH0/видео.html
यह एक विडीओ हिंदी में बनाने का प्रयास किया है , आप देख कर बताओ की कुछ फ़ायदा होता है या नहीं । मुझे हिंदी में terms नहीं आती इसलिए हिंदी में ग़लत शब्द बोल कर ग़लत नहीं पढ़ाना चाहती।
शुभकामनाएँ मेरी और से
Hindi mei batana tha
बेटे मुझे हिंदी में scientific terms नहीं आतीं इसलिए हिन्दी में नहीं बोला ।
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