Dear Philippe,
I mixed up the signs and agree with you nice and much more quantitative
explanation.
Best,
Tim
On Thursday 05 January 2017 10:18:53 AM DUMAS Philippe wrote:
> Le Jeudi 5 Janvier 2017 08:56 CET, Tim Gruene a écrit:
>
> I did not follow all the previous
@JISCMAIL.AC.UK] On Behalf Of DUMAS
Philippe (VIE)
Sent: Thursday, January 05, 2017 4:19 AM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] Slightly OT: crystallization teaching resources for kids
Le Jeudi 5 Janvier 2017 08:56 CET, Tim Gruene <tim.gru...@psi.ch> a écrit:
I did not foll
Le Jeudi 5 Janvier 2017 08:56 CET, Tim Gruene a écrit:
I did not follow all the previous details of this discussion, but I think one
may say that the statement "The entropy of molecules arranged in a crystal must
be greatly larger than in solution" is incorrect.
Of course,
I reckon you compare it to something going viral on the intertubes -
most posts or videos do nothing, they only go viral if enough people
share them.
On 05/01/2017 07:56, Tim Gruene wrote:
Dear Nicolas,
are you sure this concept is correct?
The entropy of molecules arranged in a crystal
Dear Nicolas,
are you sure this concept is correct?
The entropy of molecules arranged in a crystal must be greatly larger than in
solution. Hence the driving force for crystallisation is actually a drop in
energy, and I am not sure there is actually a barrier.
I would take the kids to the
Yes, but the kids will want to know WHY there is an energy barrier.
I prefer my explanation below.
Happy New Year to all
Patrick
_
> I am especially needing help with the concept of nucleation, and why
nucleation is slower and then crystal growth faster once nuclei have
Dear Evette,
If I was is your situation (explaining nucleation and other concept). I
will discuss in terms of energy.
I mean obtaining the initial nuclei is the "costly" step in terms of
energy. To represent that, out the classical curve of energy, I will use
a metaphoric representation