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Author Topic: What contains the most disorderly particle arrangement?  (Read 3254 times)

Offline miss_maple

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In which of the followings are the particles most disorderly packed ?
(a) ice & salt mixture at -10c
(b)ice at 100c
(c) water at 100c
(d) steam at 100c

Mod edit - Hello, Welcome to the forum.  I've changed the subject of your post to be formatted as a question - please do this in future to help keep the forum tidy and easy to navigate.  Thanks!
« Last Edit: 11/12/2008 10:30:06 by BenV »


 

lyner

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What contains the most disorderly particle arrangement?
« Reply #1 on: 22/12/2008 19:58:38 »
Can't imagine why there have been no replies to this, Miss_m.
The disorder you refer to is, I guess, easiest to describe as the temperature (average Kinetic Energy per molecule) - so steam would get it.

Anyone reckon different?
 

Offline Bored chemist

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What contains the most disorderly particle arrangement?
« Reply #2 on: 22/12/2008 20:57:56 »
Where do you find "(b) ice at 100C"?
 

Offline RD

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What contains the most disorderly particle arrangement?
« Reply #3 on: 22/12/2008 21:05:59 »
Surely a mixture of two substances is more disorganised than a pure substance in any state...

Quote
In terms of statistical mechanics, the entropy describes the number of the possible microscopic configurations of the system.
http://en.wikipedia.org/wiki/Entropy

So I think the answer is (a).
 
« Last Edit: 22/12/2008 21:08:08 by RD »
 

lyner

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What contains the most disorderly particle arrangement?
« Reply #4 on: 22/12/2008 23:58:07 »
I suppose so. I guess steam comes a distant second, then.
 

Offline Bored chemist

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What contains the most disorderly particle arrangement?
« Reply #5 on: 23/12/2008 12:00:00 »
The ions which form the salt solution are surrounded by water molecules that are quite tightly bound. Since they can't move much their disorder is markedly reduced. In a eutectic mixture there's quite a lot of salt, so a fair fraction of the water molecules might be trapped this way.
The question isn't really well defined and I'd still like to know who asks questions about boiling hot ice.
 

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What contains the most disorderly particle arrangement?
« Reply #5 on: 23/12/2008 12:00:00 »

 

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