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

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.

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 <> 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

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.