[Phys-L] First notice of "shut down" and Re: Figuring Physics solution Jan 2018

[bernard cleyet <bernardcleyet@redshift.com>]

While searching for the relationship of surface tension and evaporation.


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I might get my answer here.  (Much plowing necessary.)  


Several important phenomenological relations dealing with therrnophysical properties of liquids are collected. It is shown that the Laplace ratio between the surface energy and the latent heat improves substantially if we add a volume-expansion term to the surface energy.   

https://journals-aps-org.oca.ucsc.edu/pra/pdf/10.1103/PhysRevA.46.2166  



suggested expt:   rate of evaporation and cooling rate w/ & w/o surfactant.  use fan


> On 2018/Jan/20, at 20:18, John Denker via Phys-l <phys-l@mail.phys-l.org> wrote:
>
> On 01/20/2018 08:59 PM, Jeffrey Schnick wrote:
>
> > (I think the explanation given in the Physics Teacher is conceptually correct.) 
>
> It's not correct, conceptually or otherwise.
>
> As Robert Cohen pointed out at the beginning of this thread,
> when the molecule leaves the liquid, it loses its binding
> energy (van der Waals or whatever).  If it loses energy
> but there is no cooling, what happens to conservation of
> energy??????
>
> Also, if the explanation were correct it would apply
> equally to evaporation (sublimation) from a solid.
> It's even more obviously wrong in that case.
   

bc    discovered a Bernoulli type family


Penrose (at least) three generations including a chess grand master, notable geneticist (sister!), royal academy member(s), doctor(s), and physicists/mathematicians.


Instinctually think (suspect very wrong) w/ the counterfactual still will cool.  Use first principle.