On Mon, 16 Feb 2015 14:26:35 -0600, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

Ed Huntress fired this volley in
:

Well, 20 torr is only about 0.4 psi absolute. So the difference is
insignificant.

Oh... you you missed the most basic point. Yep... 20 torr IS about .4 psi,
absolute.... figure that FROM 14.7-odd psi atmospheric.

G
Lloyd

Let's try this again. When the water column separates, the water vapor
pressure would allow the absolute pressure to drop to 0.4 psi. That's
14.3 psi LESS than atmospheric.

When a column separates, the gas pressure in that bubble consists only
of the water-vapor pressure (or the vapor pressure of whatever liquid
was in there.)

Are we on the same page?

--
Ed Huntress