Comments on: Branching, and Its Affect On Melting and Boiling Points https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/ Tue, 13 Dec 2022 20:54:01 +0000 hourly 1 https://wordpress.org/?v=6.6.2 By: Fatima https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-605827 Sat, 25 Sep 2021 08:08:46 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-605827 How can it comes to relate between stability and bp and mp? I mean branched alkanes are known to be more stable than linear ones, but their bp and mp are lower than linear… why when the stability increases of these branched alkanes their bp and mp do not increase, rather they dercrease?

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By: luffy223 https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-589277 Thu, 10 Dec 2020 17:30:19 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-589277 the comments are from 10 years !!!!! wow really wow I liked your way of explaining it and summerisied them here can anyone check them for me
i- the longer a hydrocarbon chain will create more surface for intermolecular interactions which will result in a higher melting point
ii- the better a hydrocarbon structure at stacking the higher its melting point:-
1- a linear chain will have a better stacking ability than a branched one
2- the less surface area in a branched chain the better its ability to stack (except for a liner chain)
3- a double bond will create a kink which will result in a sim-branched structure
4- saturated > highly branched > branched = unsaturated

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By: Nicole https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-579049 Sun, 12 Apr 2020 15:22:36 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-579049 Thanks for the nice and simple explanation, i was wondering why you would “Treat the n-hydrocarbon as a special case, and ignore it for the time being.”. Does this have something to do with the surface area and it being different?

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By: James Ashenhurst https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-547538 Mon, 11 Feb 2019 16:03:54 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-547538 In reply to Saujanya Sood.

So glad you found it useful Saujanya!

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By: Saujanya Sood https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-547495 Sun, 10 Feb 2019 17:57:07 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-547495 Oh my god, this is such a beautifully simple explanation. I love how you guys make all of it so easy to understand. When I reached the end of the article, I was like, “Oh! That’s it?” Loved it.

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By: Riddhi https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-529689 Wed, 21 Mar 2018 03:50:27 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-529689 Thanks for the awesome website!
I have two questions:
1) Since better packing makes MP increase ,can we say that it alters lattice energy?
2)Why dont vanderwaals forces affect melting point?

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By: Jess https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-501217 Sat, 14 Jan 2017 08:28:44 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-501217 Hi I just want to say thank you for such a clear explanation. I am a high school student who takes chem this year. Our teacher simply just told us to remember the rule without explaning it. After reading the article I understand the concept much better. Tks alot :D

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By: James https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-458614 Tue, 17 May 2016 13:59:35 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-458614 In reply to HB.

Melting point is a property of solids, not solutions – so I don’t know how to answer this question.

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By: HB https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-458595 Tue, 17 May 2016 10:02:50 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-458595 hello,

I have a question; is it possible to add up two melting points of different substances, for instance: a solution (500ml) with a meltingpoint of 20C + a solution with melting point of 150C (10grams). i suppose that at a temperature of 30-50C will be good for this 10grams to dissolve completely ??

any suggestions’?

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By: Abzxyz https://www.masterorganicchemistry.com/2010/07/09/branching-melting-boiling-points/#comment-450352 Tue, 15 Mar 2016 16:16:13 +0000 http://masterorganicchemistry.wordpress.com/?p=596#comment-450352 Sorry mp and bp lower

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